SlideShare a Scribd company logo
1 of 8
Strange Events Chapter 13 43
COURTSHIP GAMES
For continuing their line many ,if not most, animals adopt courtship
tactics, fight rivals, indulge in displays and dances and play the mating
games ;the competition is fierce and to succeed in mating games they
use every possible colour, sound and some very strange behaviour .:
American Male red sided garter snakes begin a frenzied race at just
one whiff of female’s sex hormones which they can ‘taste’ by flicking
their tongue in air .
In Malaysian swamps trees sparkle with thousands of female
Pyrophorous fire flies signaling their mates with a magical light show
in the mangroves.
Indian Moon moth has the most acute sense of smell in nature-it can
smell a single molecule of female sex hormone scent from up to 5 kms
away .
Green stink bugs sing and ‘telephone’ each other using body vibrations
sent as signals along plant stems utilizing the later as telegraph wires .
When Zebra stallions fight for a female their battles follow a set of
precise, complex rules-- like kaurav –pandav ?
Strange Events 44
Sea anemones are known for slow motion under water battles ;although
delicate they are armed with lethal stinging cells laden with poison
which they fire off in vollies at each other .
BY HOOK OR CROOK
‘Everything is fair in love and war’ is not man’s monopoly
animals also ‘believe in it’ , nay practice it merrily ;
sharing many traits with us and among themselves
propelled by natural instincts they are also carried away willy nilly
by forces of attraction and repulsion as we do and perhaps
play the game better than us - more sincerely and interestingly !
Male adder snakes perform an extraordinary display of gymnastics as
a test of their strength and dancing spirally put off their rivals.
Male frigate bird of Galpagos isles attracts females by puffing out
its gaudy bright red throat pouch inflating and vibrating it ,
clapping his bill noisily and waving his wings .
Strange Events 45
Australian Lyre bird is known for its talent of impersonation as it can
duplicate the calls of 16 other bird s; Other species such as parrot’s
screeches other birds songs and even dog’s barks .
European Great crested Grebe’s dazzling water dance is very famous .
In fact its mating dance is one of Nature’s most intricate ‘pas de deux’ ;
Actually mated pairs progress first to a ‘discovery display.’ and then to a
‘retreat display’ dashing across water diving and rising and thereafter to
an intimate ‘ weed dance’ in which pressed together the two grebs tread
water and rise up neck to neck, breast to breast each flicking a beakful of
weed from side to side .
As Salmon migrate towards their spawning beds, both sexes undergo
dramatic physical changes in preparation to mate—when female’s body
fills with eggs , Atlantic salmon Cocks skin changes colour –becomes
reddish, his head elongates ,his jaws enlarge and a hook develops on
the lower jaw ;
Other species also undergo conspicuous changes – silvery Sockeye
salmon’s back arches, his head turns green and body scarlet
and he develops fierce set of teeth ; and there after males battle over
females .
Strange Events 46
Thatched huts , lichen-covered bridges, canopies ,silvery stages ,blue
tinted walls, maypoles, towers ,and alleys carpeted with sparkling
jewels-these are just some of the Australian Bower bird’s fabulous
constructions .
The male Stickleback turns red and he dances to attract the female fish
and to take her to the dome shaped mud ‘nest’ built by him and there
he tends the eggs and tries to oxygenate the water around them.
Mayflies are known for their acrobatic dance of death ;their larvae live
up to 3 years but when time comes they float to the surface of water to
breed and die in just one day ; First they moult as pre adult ,then
minutes later into an adult and when a female rises to join the swarm the
males dance mate and die all in a day .
The mating game in Nature has many other peculiarities,-
From hermaphroditism to sex changes we come across most weird and
wonderful practices. In fact :
Strange events 47
In some species males are literally devoured by their partners while
mating .
Male Cephalpods including Octopus , Cuttlefish and Squid wrap their
sperms into neat parcels and during mating push them through female’s
breathing tube-( its ‘nose’ ! ) and into her genital duct where sperms
spill out to fertilize eggs .
Many mollusks are hermaphrodites .-when two such individuals mate,
both will produce a batch of fertilized eggs .
Sex change is a common phenomenon in some species .;
Dusky slug changes sex with age--beginning life as male it turns into a
female as it develops.;
In Clown fish of Great barrier reef if the dominant female dies its
partner –dominant male turns into female ; but among Blue headed
Wrasse of the Atlantic if a dominant male dies the largest female turns
into male.
Shark courtship is a complex manoeuvre requiring the male to ‘dock’
along side the female ;It has two sex organs to enable him to dock on
left or right side with the help of claspers and the sperms are transferred
using a muscle driven hydraulic system into female .
Strange events 48
For Praying Mantis males, sex is a dangerous activity since male is
on female’s menu and it tends to eat them during copulation .However
,the threat of death does not damage a male’s sex drive. In fact ,once
the males head has been chewed off, a nervous reflex causes him to
copulate more vigorously--;and only if he carefully avoids her fore legs
and makes hasty retreat can he avoid being eaten .
Kidnapping and Child marriage are a curse not only for Indian humans
for Male Hamadryas Baboons kidnap young females from their mothers
to add to their personal harems .
Male spiders of some varieties try wooing the females with a nuptial
gift of an insect wrapped in silken cocoon and enter courtship cautiously
to avoid being eaten by the larger predatory female .
One species of American Catfish has an unusual mating technique
whereby the female drinks the male’s sperms .
The desert living male decorated cricket courts his mate by offering her
a delicious meal as a tasty gift.-As the male mates he transfers two
things –a capsule full of sperm and a large blob of a gelatinous
substance to eat .
Strange Events 49
When African species of Velvet worm is ready to mate it sticks sperms
on any part of females body and they are absorbed through skin and
allowed to swim to eggs inside .; But Australian species have bumps
and syringe like shapes on their head and the male takes out and carries
sperms on his head and then delivers them to female by poking his
head into her cloaca .
Strange events in bio world chapter 13  courtship games  43

More Related Content

What's hot

Part 4: Marvels & Mysteries of Our Animal World
Part 4:  Marvels & Mysteries of Our Animal World Part 4:  Marvels & Mysteries of Our Animal World
Part 4: Marvels & Mysteries of Our Animal World Srividya Rajagopalan
 
Part 2: Marvels & Mysteries of Our Animal World
Part 2: Marvels & Mysteries of Our Animal World Part 2: Marvels & Mysteries of Our Animal World
Part 2: Marvels & Mysteries of Our Animal World Srividya Rajagopalan
 
Amphibians: What do we know about them?
Amphibians: What do we know about them?Amphibians: What do we know about them?
Amphibians: What do we know about them?Gururaja KV
 
Duck billed platypus
Duck billed platypusDuck billed platypus
Duck billed platypusrrang
 
Part 1 to 4: Marvels & Mysteries of Our Animal World
Part 1 to 4:  Marvels & Mysteries of Our Animal World Part 1 to 4:  Marvels & Mysteries of Our Animal World
Part 1 to 4: Marvels & Mysteries of Our Animal World Srividya Rajagopalan
 
Amphibians
AmphibiansAmphibians
Amphibiansclarot16
 
Flashcards.
Flashcards.Flashcards.
Flashcards.sara9311
 
Marvels & Mysteries of Our Animal World - Part 1
Marvels & Mysteries of Our Animal World - Part 1Marvels & Mysteries of Our Animal World - Part 1
Marvels & Mysteries of Our Animal World - Part 1Srividya Rajagopalan
 
14 tarun, trinav, connor, sai, jason's guidebook
14  tarun, trinav, connor, sai, jason's guidebook14  tarun, trinav, connor, sai, jason's guidebook
14 tarun, trinav, connor, sai, jason's guidebookGarden Gate Elementary
 
Some aspect about animals
Some aspect about animalsSome aspect about animals
Some aspect about animalssara9311
 
Amphibian Reproduction Notes
Amphibian Reproduction NotesAmphibian Reproduction Notes
Amphibian Reproduction Notesericchapman81
 
Amphibians Introduction Notes
Amphibians  Introduction NotesAmphibians  Introduction Notes
Amphibians Introduction Notesericchapman81
 
Birth & reproductive developmental process
Birth & reproductive developmental processBirth & reproductive developmental process
Birth & reproductive developmental processBrialady18
 

What's hot (19)

Part 4: Marvels & Mysteries of Our Animal World
Part 4:  Marvels & Mysteries of Our Animal World Part 4:  Marvels & Mysteries of Our Animal World
Part 4: Marvels & Mysteries of Our Animal World
 
Part 2: Marvels & Mysteries of Our Animal World
Part 2: Marvels & Mysteries of Our Animal World Part 2: Marvels & Mysteries of Our Animal World
Part 2: Marvels & Mysteries of Our Animal World
 
Amphibians: What do we know about them?
Amphibians: What do we know about them?Amphibians: What do we know about them?
Amphibians: What do we know about them?
 
Duck billed platypus
Duck billed platypusDuck billed platypus
Duck billed platypus
 
Part 1 to 4: Marvels & Mysteries of Our Animal World
Part 1 to 4:  Marvels & Mysteries of Our Animal World Part 1 to 4:  Marvels & Mysteries of Our Animal World
Part 1 to 4: Marvels & Mysteries of Our Animal World
 
Lizard Notes
Lizard NotesLizard Notes
Lizard Notes
 
Amphibians
AmphibiansAmphibians
Amphibians
 
Unit 2 the reptiles.
Unit 2 the reptiles.Unit 2 the reptiles.
Unit 2 the reptiles.
 
Flashcards.
Flashcards.Flashcards.
Flashcards.
 
Marvels & Mysteries of Our Animal World - Part 1
Marvels & Mysteries of Our Animal World - Part 1Marvels & Mysteries of Our Animal World - Part 1
Marvels & Mysteries of Our Animal World - Part 1
 
Snake Notes
Snake NotesSnake Notes
Snake Notes
 
Dolphins
DolphinsDolphins
Dolphins
 
14 tarun, trinav, connor, sai, jason's guidebook
14  tarun, trinav, connor, sai, jason's guidebook14  tarun, trinav, connor, sai, jason's guidebook
14 tarun, trinav, connor, sai, jason's guidebook
 
Unit 6 vertebrates (part 2)
Unit 6 vertebrates (part 2)Unit 6 vertebrates (part 2)
Unit 6 vertebrates (part 2)
 
Some aspect about animals
Some aspect about animalsSome aspect about animals
Some aspect about animals
 
Amphibian Reproduction Notes
Amphibian Reproduction NotesAmphibian Reproduction Notes
Amphibian Reproduction Notes
 
Aimee Keynote
Aimee KeynoteAimee Keynote
Aimee Keynote
 
Amphibians Introduction Notes
Amphibians  Introduction NotesAmphibians  Introduction Notes
Amphibians Introduction Notes
 
Birth & reproductive developmental process
Birth & reproductive developmental processBirth & reproductive developmental process
Birth & reproductive developmental process
 

Similar to Strange events in bio world chapter 13 courtship games 43

MATTING BEHAVIOR IN AMPHIBIANS.pptx
MATTING BEHAVIOR IN AMPHIBIANS.pptxMATTING BEHAVIOR IN AMPHIBIANS.pptx
MATTING BEHAVIOR IN AMPHIBIANS.pptxMehakFatima395414
 
Caracal caracal Powerpoint presentation:by Oyengo Joseph
Caracal caracal Powerpoint presentation:by Oyengo JosephCaracal caracal Powerpoint presentation:by Oyengo Joseph
Caracal caracal Powerpoint presentation:by Oyengo JosephJOSEPHOYENGO
 
9 REAL Halloween Monsters
9 REAL Halloween Monsters9 REAL Halloween Monsters
9 REAL Halloween MonstersStinson
 
OMSI Science Pub - Gray Whales
OMSI Science Pub - Gray WhalesOMSI Science Pub - Gray Whales
OMSI Science Pub - Gray WhalesOMSI Science Pub
 
Strange Events in Bio World chapter 4 Acquiring home 13
Strange Events in  Bio World  chapter  4   Acquiring home  13Strange Events in  Bio World  chapter  4   Acquiring home  13
Strange Events in Bio World chapter 4 Acquiring home 13SantoshBhatnagar1
 
Animals That Lay Eggs (with Pictures).pdf
Animals That Lay Eggs (with Pictures).pdfAnimals That Lay Eggs (with Pictures).pdf
Animals That Lay Eggs (with Pictures).pdfUrduFOX
 
Metodologia
MetodologiaMetodologia
Metodologianaye_142
 
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptx
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptxALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptx
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptxAngel911172
 
Noruza Presentation : Light Color Version
Noruza Presentation : Light Color VersionNoruza Presentation : Light Color Version
Noruza Presentation : Light Color VersionMadlis
 
Noruza Presentation : Dark Color Version
Noruza Presentation : Dark Color VersionNoruza Presentation : Dark Color Version
Noruza Presentation : Dark Color VersionMadlis
 
3A Rainforest Animals 2011
3A Rainforest Animals 20113A Rainforest Animals 2011
3A Rainforest Animals 2011mweller98
 
Nocturnal animals
Nocturnal animalsNocturnal animals
Nocturnal animalseteyeche
 

Similar to Strange events in bio world chapter 13 courtship games 43 (20)

MATTING BEHAVIOR IN AMPHIBIANS.pptx
MATTING BEHAVIOR IN AMPHIBIANS.pptxMATTING BEHAVIOR IN AMPHIBIANS.pptx
MATTING BEHAVIOR IN AMPHIBIANS.pptx
 
Orca (killer wale)
Orca (killer wale)Orca (killer wale)
Orca (killer wale)
 
Caracal caracal Powerpoint presentation:by Oyengo Joseph
Caracal caracal Powerpoint presentation:by Oyengo JosephCaracal caracal Powerpoint presentation:by Oyengo Joseph
Caracal caracal Powerpoint presentation:by Oyengo Joseph
 
Merostomata
MerostomataMerostomata
Merostomata
 
Ch 6notes
Ch 6notesCh 6notes
Ch 6notes
 
9 REAL Halloween Monsters
9 REAL Halloween Monsters9 REAL Halloween Monsters
9 REAL Halloween Monsters
 
Zoology Guide
Zoology GuideZoology Guide
Zoology Guide
 
OMSI Science Pub - Gray Whales
OMSI Science Pub - Gray WhalesOMSI Science Pub - Gray Whales
OMSI Science Pub - Gray Whales
 
Courtship Kalyan.pptx
Courtship Kalyan.pptxCourtship Kalyan.pptx
Courtship Kalyan.pptx
 
Strange Events in Bio World chapter 4 Acquiring home 13
Strange Events in  Bio World  chapter  4   Acquiring home  13Strange Events in  Bio World  chapter  4   Acquiring home  13
Strange Events in Bio World chapter 4 Acquiring home 13
 
Animals That Lay Eggs (with Pictures).pdf
Animals That Lay Eggs (with Pictures).pdfAnimals That Lay Eggs (with Pictures).pdf
Animals That Lay Eggs (with Pictures).pdf
 
Metodologia
MetodologiaMetodologia
Metodologia
 
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptx
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptxALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptx
ALL ABOUT AMPHIBIANS ALL ABOUT AMPHIBIANS.pptx
 
Noruza Presentation : Light Color Version
Noruza Presentation : Light Color VersionNoruza Presentation : Light Color Version
Noruza Presentation : Light Color Version
 
Noruza Presentation : Dark Color Version
Noruza Presentation : Dark Color VersionNoruza Presentation : Dark Color Version
Noruza Presentation : Dark Color Version
 
Carcass
CarcassCarcass
Carcass
 
3A Rainforest Animals 2011
3A Rainforest Animals 20113A Rainforest Animals 2011
3A Rainforest Animals 2011
 
My adaptation learning
My adaptation learningMy adaptation learning
My adaptation learning
 
My adaptation learning
My adaptation learningMy adaptation learning
My adaptation learning
 
Nocturnal animals
Nocturnal animalsNocturnal animals
Nocturnal animals
 

More from SantoshBhatnagar1

EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docx
EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docxEXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docx
EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docxSantoshBhatnagar1
 
Exoelectrogens -Archaea- Sulfolobus Sniped.docx
Exoelectrogens -Archaea-  Sulfolobus  Sniped.docxExoelectrogens -Archaea-  Sulfolobus  Sniped.docx
Exoelectrogens -Archaea- Sulfolobus Sniped.docxSantoshBhatnagar1
 
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docx
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docxEXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docx
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docxSantoshBhatnagar1
 
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docx
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docxEXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docx
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docxSantoshBhatnagar1
 
Exoelctrogens - macro algae - Ulva - snip.docx
Exoelctrogens - macro algae - Ulva - snip.docxExoelctrogens - macro algae - Ulva - snip.docx
Exoelctrogens - macro algae - Ulva - snip.docxSantoshBhatnagar1
 
Exoelectrogens Microalgae Nitzschia vidyut janak prani SNIPED.docx
Exoelectrogens  Microalgae  Nitzschia   vidyut janak prani SNIPED.docxExoelectrogens  Microalgae  Nitzschia   vidyut janak prani SNIPED.docx
Exoelectrogens Microalgae Nitzschia vidyut janak prani SNIPED.docxSantoshBhatnagar1
 
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docx
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docxExoelectrogens - Micro Algae - Chlorella - SNIPED.docx
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docxSantoshBhatnagar1
 
EXOELECTROGENS -CYANOBACTERIA.docx
EXOELECTROGENS -CYANOBACTERIA.docxEXOELECTROGENS -CYANOBACTERIA.docx
EXOELECTROGENS -CYANOBACTERIA.docxSantoshBhatnagar1
 
Shewanella - sniped p1-7.docx
Shewanella - sniped  p1-7.docxShewanella - sniped  p1-7.docx
Shewanella - sniped p1-7.docxSantoshBhatnagar1
 
EXOELECTROGENS - GEOBACTER - P D SNIPED.docx
EXOELECTROGENS - GEOBACTER - P D SNIPED.docxEXOELECTROGENS - GEOBACTER - P D SNIPED.docx
EXOELECTROGENS - GEOBACTER - P D SNIPED.docxSantoshBhatnagar1
 
EXOELECTROGENS -INTRODUCTION II SNIPE.docx
EXOELECTROGENS -INTRODUCTION II SNIPE.docxEXOELECTROGENS -INTRODUCTION II SNIPE.docx
EXOELECTROGENS -INTRODUCTION II SNIPE.docxSantoshBhatnagar1
 
Exoelectrogens -cover-Introduction - SNIPED.docx
Exoelectrogens -cover-Introduction - SNIPED.docxExoelectrogens -cover-Introduction - SNIPED.docx
Exoelectrogens -cover-Introduction - SNIPED.docxSantoshBhatnagar1
 
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docx
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docxCHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docx
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docxSantoshBhatnagar1
 
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docx
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docxCHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docx
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docxSantoshBhatnagar1
 
Champion Viruses -Largest - Pithovirus- S.docx
Champion Viruses -Largest - Pithovirus- S.docxChampion Viruses -Largest - Pithovirus- S.docx
Champion Viruses -Largest - Pithovirus- S.docxSantoshBhatnagar1
 
Champion of champions -Prayer to vishvkarma.docx
Champion of champions -Prayer to vishvkarma.docxChampion of champions -Prayer to vishvkarma.docx
Champion of champions -Prayer to vishvkarma.docxSantoshBhatnagar1
 
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docx
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docxCHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docx
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docxSantoshBhatnagar1
 
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docx
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docxCHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docx
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docxSantoshBhatnagar1
 
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docx
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docxCHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docx
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docxSantoshBhatnagar1
 

More from SantoshBhatnagar1 (20)

List ofbooks -sniped.docx
List ofbooks -sniped.docxList ofbooks -sniped.docx
List ofbooks -sniped.docx
 
EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docx
EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docxEXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docx
EXOELECTROGENS - ARCHAEA - NATRIALBA -HALOALKALIPHILIC - SNIP.docx
 
Exoelectrogens -Archaea- Sulfolobus Sniped.docx
Exoelectrogens -Archaea-  Sulfolobus  Sniped.docxExoelectrogens -Archaea-  Sulfolobus  Sniped.docx
Exoelectrogens -Archaea- Sulfolobus Sniped.docx
 
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docx
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docxEXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docx
EXOELECTROGENS - - CHLAMYDOMONAS- SNIPED.docx
 
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docx
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docxEXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docx
EXOELECTROGENS - ARCHAEA - PYROCOCCUS - SNIP.docx
 
Exoelctrogens - macro algae - Ulva - snip.docx
Exoelctrogens - macro algae - Ulva - snip.docxExoelctrogens - macro algae - Ulva - snip.docx
Exoelctrogens - macro algae - Ulva - snip.docx
 
Exoelectrogens Microalgae Nitzschia vidyut janak prani SNIPED.docx
Exoelectrogens  Microalgae  Nitzschia   vidyut janak prani SNIPED.docxExoelectrogens  Microalgae  Nitzschia   vidyut janak prani SNIPED.docx
Exoelectrogens Microalgae Nitzschia vidyut janak prani SNIPED.docx
 
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docx
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docxExoelectrogens - Micro Algae - Chlorella - SNIPED.docx
Exoelectrogens - Micro Algae - Chlorella - SNIPED.docx
 
EXOELECTROGENS -CYANOBACTERIA.docx
EXOELECTROGENS -CYANOBACTERIA.docxEXOELECTROGENS -CYANOBACTERIA.docx
EXOELECTROGENS -CYANOBACTERIA.docx
 
Shewanella - sniped p1-7.docx
Shewanella - sniped  p1-7.docxShewanella - sniped  p1-7.docx
Shewanella - sniped p1-7.docx
 
EXOELECTROGENS - GEOBACTER - P D SNIPED.docx
EXOELECTROGENS - GEOBACTER - P D SNIPED.docxEXOELECTROGENS - GEOBACTER - P D SNIPED.docx
EXOELECTROGENS - GEOBACTER - P D SNIPED.docx
 
EXOELECTROGENS -INTRODUCTION II SNIPE.docx
EXOELECTROGENS -INTRODUCTION II SNIPE.docxEXOELECTROGENS -INTRODUCTION II SNIPE.docx
EXOELECTROGENS -INTRODUCTION II SNIPE.docx
 
Exoelectrogens -cover-Introduction - SNIPED.docx
Exoelectrogens -cover-Introduction - SNIPED.docxExoelectrogens -cover-Introduction - SNIPED.docx
Exoelectrogens -cover-Introduction - SNIPED.docx
 
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docx
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docxCHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docx
CHAMPIONS OF THE PLANT KINGDOM - CONTENTS SNIP.docx
 
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docx
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docxCHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docx
CHAMPION FUNGI -PHELLINUS ELLIPSOIDEUS - LARGEST FRUITING BODY - SNIP PD.docx
 
Champion Viruses -Largest - Pithovirus- S.docx
Champion Viruses -Largest - Pithovirus- S.docxChampion Viruses -Largest - Pithovirus- S.docx
Champion Viruses -Largest - Pithovirus- S.docx
 
Champion of champions -Prayer to vishvkarma.docx
Champion of champions -Prayer to vishvkarma.docxChampion of champions -Prayer to vishvkarma.docx
Champion of champions -Prayer to vishvkarma.docx
 
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docx
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docxCHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docx
CHAMPION LILLIPUTS -SMALLEST VIRUS - CIRCO ; RSV SNIP PD.docx
 
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docx
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docxCHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docx
CHAMPION LILLIPUTS- SMALLEST BACTERIA - PELAGIBACTER SNIP PD.docx
 
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docx
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docxCHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docx
CHAMPION LILLIPUTS - BACTERIA -MYCOPLASMA -SMALLEST SNIP PD.docx
 

Recently uploaded

Orientation, design and principles of polyhouse
Orientation, design and principles of polyhouseOrientation, design and principles of polyhouse
Orientation, design and principles of polyhousejana861314
 
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.aasikanpl
 
Recombination DNA Technology (Nucleic Acid Hybridization )
Recombination DNA Technology (Nucleic Acid Hybridization )Recombination DNA Technology (Nucleic Acid Hybridization )
Recombination DNA Technology (Nucleic Acid Hybridization )aarthirajkumar25
 
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptx
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptxSOLUBLE PATTERN RECOGNITION RECEPTORS.pptx
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptxkessiyaTpeter
 
Bentham & Hooker's Classification. along with the merits and demerits of the ...
Bentham & Hooker's Classification. along with the merits and demerits of the ...Bentham & Hooker's Classification. along with the merits and demerits of the ...
Bentham & Hooker's Classification. along with the merits and demerits of the ...Nistarini College, Purulia (W.B) India
 
Cultivation of KODO MILLET . made by Ghanshyam pptx
Cultivation of KODO MILLET . made by Ghanshyam pptxCultivation of KODO MILLET . made by Ghanshyam pptx
Cultivation of KODO MILLET . made by Ghanshyam pptxpradhanghanshyam7136
 
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |aasikanpl
 
Is RISC-V ready for HPC workload? Maybe?
Is RISC-V ready for HPC workload? Maybe?Is RISC-V ready for HPC workload? Maybe?
Is RISC-V ready for HPC workload? Maybe?Patrick Diehl
 
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43bNightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43bSérgio Sacani
 
Types of different blotting techniques.pptx
Types of different blotting techniques.pptxTypes of different blotting techniques.pptx
Types of different blotting techniques.pptxkhadijarafiq2012
 
Work, Energy and Power for class 10 ICSE Physics
Work, Energy and Power for class 10 ICSE PhysicsWork, Energy and Power for class 10 ICSE Physics
Work, Energy and Power for class 10 ICSE Physicsvishikhakeshava1
 
Grafana in space: Monitoring Japan's SLIM moon lander in real time
Grafana in space: Monitoring Japan's SLIM moon lander  in real timeGrafana in space: Monitoring Japan's SLIM moon lander  in real time
Grafana in space: Monitoring Japan's SLIM moon lander in real timeSatoshi NAKAHIRA
 
Disentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOSTDisentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOSTSérgio Sacani
 
Biological Classification BioHack (3).pdf
Biological Classification BioHack (3).pdfBiological Classification BioHack (3).pdf
Biological Classification BioHack (3).pdfmuntazimhurra
 
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...anilsa9823
 
Caco-2 cell permeability assay for drug absorption
Caco-2 cell permeability assay for drug absorptionCaco-2 cell permeability assay for drug absorption
Caco-2 cell permeability assay for drug absorptionPriyansha Singh
 
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service  🪡CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service  🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡anilsa9823
 

Recently uploaded (20)

Orientation, design and principles of polyhouse
Orientation, design and principles of polyhouseOrientation, design and principles of polyhouse
Orientation, design and principles of polyhouse
 
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.
Call Girls in Munirka Delhi 💯Call Us 🔝9953322196🔝 💯Escort.
 
Recombination DNA Technology (Nucleic Acid Hybridization )
Recombination DNA Technology (Nucleic Acid Hybridization )Recombination DNA Technology (Nucleic Acid Hybridization )
Recombination DNA Technology (Nucleic Acid Hybridization )
 
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptx
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptxSOLUBLE PATTERN RECOGNITION RECEPTORS.pptx
SOLUBLE PATTERN RECOGNITION RECEPTORS.pptx
 
9953056974 Young Call Girls In Mahavir enclave Indian Quality Escort service
9953056974 Young Call Girls In Mahavir enclave Indian Quality Escort service9953056974 Young Call Girls In Mahavir enclave Indian Quality Escort service
9953056974 Young Call Girls In Mahavir enclave Indian Quality Escort service
 
Bentham & Hooker's Classification. along with the merits and demerits of the ...
Bentham & Hooker's Classification. along with the merits and demerits of the ...Bentham & Hooker's Classification. along with the merits and demerits of the ...
Bentham & Hooker's Classification. along with the merits and demerits of the ...
 
Cultivation of KODO MILLET . made by Ghanshyam pptx
Cultivation of KODO MILLET . made by Ghanshyam pptxCultivation of KODO MILLET . made by Ghanshyam pptx
Cultivation of KODO MILLET . made by Ghanshyam pptx
 
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |
Call Us ≽ 9953322196 ≼ Call Girls In Mukherjee Nagar(Delhi) |
 
Is RISC-V ready for HPC workload? Maybe?
Is RISC-V ready for HPC workload? Maybe?Is RISC-V ready for HPC workload? Maybe?
Is RISC-V ready for HPC workload? Maybe?
 
CELL -Structural and Functional unit of life.pdf
CELL -Structural and Functional unit of life.pdfCELL -Structural and Functional unit of life.pdf
CELL -Structural and Functional unit of life.pdf
 
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43bNightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
 
Types of different blotting techniques.pptx
Types of different blotting techniques.pptxTypes of different blotting techniques.pptx
Types of different blotting techniques.pptx
 
Work, Energy and Power for class 10 ICSE Physics
Work, Energy and Power for class 10 ICSE PhysicsWork, Energy and Power for class 10 ICSE Physics
Work, Energy and Power for class 10 ICSE Physics
 
Grafana in space: Monitoring Japan's SLIM moon lander in real time
Grafana in space: Monitoring Japan's SLIM moon lander  in real timeGrafana in space: Monitoring Japan's SLIM moon lander  in real time
Grafana in space: Monitoring Japan's SLIM moon lander in real time
 
Disentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOSTDisentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOST
 
Biological Classification BioHack (3).pdf
Biological Classification BioHack (3).pdfBiological Classification BioHack (3).pdf
Biological Classification BioHack (3).pdf
 
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
 
Caco-2 cell permeability assay for drug absorption
Caco-2 cell permeability assay for drug absorptionCaco-2 cell permeability assay for drug absorption
Caco-2 cell permeability assay for drug absorption
 
Engler and Prantl system of classification in plant taxonomy
Engler and Prantl system of classification in plant taxonomyEngler and Prantl system of classification in plant taxonomy
Engler and Prantl system of classification in plant taxonomy
 
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service  🪡CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service  🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
 

Strange events in bio world chapter 13 courtship games 43

  • 1. Strange Events Chapter 13 43 COURTSHIP GAMES For continuing their line many ,if not most, animals adopt courtship tactics, fight rivals, indulge in displays and dances and play the mating games ;the competition is fierce and to succeed in mating games they use every possible colour, sound and some very strange behaviour .: American Male red sided garter snakes begin a frenzied race at just one whiff of female’s sex hormones which they can ‘taste’ by flicking their tongue in air . In Malaysian swamps trees sparkle with thousands of female Pyrophorous fire flies signaling their mates with a magical light show in the mangroves. Indian Moon moth has the most acute sense of smell in nature-it can smell a single molecule of female sex hormone scent from up to 5 kms away . Green stink bugs sing and ‘telephone’ each other using body vibrations sent as signals along plant stems utilizing the later as telegraph wires . When Zebra stallions fight for a female their battles follow a set of precise, complex rules-- like kaurav –pandav ?
  • 2. Strange Events 44 Sea anemones are known for slow motion under water battles ;although delicate they are armed with lethal stinging cells laden with poison which they fire off in vollies at each other . BY HOOK OR CROOK ‘Everything is fair in love and war’ is not man’s monopoly animals also ‘believe in it’ , nay practice it merrily ; sharing many traits with us and among themselves propelled by natural instincts they are also carried away willy nilly by forces of attraction and repulsion as we do and perhaps play the game better than us - more sincerely and interestingly ! Male adder snakes perform an extraordinary display of gymnastics as a test of their strength and dancing spirally put off their rivals. Male frigate bird of Galpagos isles attracts females by puffing out its gaudy bright red throat pouch inflating and vibrating it , clapping his bill noisily and waving his wings .
  • 3. Strange Events 45 Australian Lyre bird is known for its talent of impersonation as it can duplicate the calls of 16 other bird s; Other species such as parrot’s screeches other birds songs and even dog’s barks . European Great crested Grebe’s dazzling water dance is very famous . In fact its mating dance is one of Nature’s most intricate ‘pas de deux’ ; Actually mated pairs progress first to a ‘discovery display.’ and then to a ‘retreat display’ dashing across water diving and rising and thereafter to an intimate ‘ weed dance’ in which pressed together the two grebs tread water and rise up neck to neck, breast to breast each flicking a beakful of weed from side to side . As Salmon migrate towards their spawning beds, both sexes undergo dramatic physical changes in preparation to mate—when female’s body fills with eggs , Atlantic salmon Cocks skin changes colour –becomes reddish, his head elongates ,his jaws enlarge and a hook develops on the lower jaw ; Other species also undergo conspicuous changes – silvery Sockeye salmon’s back arches, his head turns green and body scarlet and he develops fierce set of teeth ; and there after males battle over females .
  • 4. Strange Events 46 Thatched huts , lichen-covered bridges, canopies ,silvery stages ,blue tinted walls, maypoles, towers ,and alleys carpeted with sparkling jewels-these are just some of the Australian Bower bird’s fabulous constructions . The male Stickleback turns red and he dances to attract the female fish and to take her to the dome shaped mud ‘nest’ built by him and there he tends the eggs and tries to oxygenate the water around them. Mayflies are known for their acrobatic dance of death ;their larvae live up to 3 years but when time comes they float to the surface of water to breed and die in just one day ; First they moult as pre adult ,then minutes later into an adult and when a female rises to join the swarm the males dance mate and die all in a day . The mating game in Nature has many other peculiarities,- From hermaphroditism to sex changes we come across most weird and wonderful practices. In fact :
  • 5. Strange events 47 In some species males are literally devoured by their partners while mating . Male Cephalpods including Octopus , Cuttlefish and Squid wrap their sperms into neat parcels and during mating push them through female’s breathing tube-( its ‘nose’ ! ) and into her genital duct where sperms spill out to fertilize eggs . Many mollusks are hermaphrodites .-when two such individuals mate, both will produce a batch of fertilized eggs . Sex change is a common phenomenon in some species .; Dusky slug changes sex with age--beginning life as male it turns into a female as it develops.; In Clown fish of Great barrier reef if the dominant female dies its partner –dominant male turns into female ; but among Blue headed Wrasse of the Atlantic if a dominant male dies the largest female turns into male. Shark courtship is a complex manoeuvre requiring the male to ‘dock’ along side the female ;It has two sex organs to enable him to dock on left or right side with the help of claspers and the sperms are transferred using a muscle driven hydraulic system into female .
  • 6. Strange events 48 For Praying Mantis males, sex is a dangerous activity since male is on female’s menu and it tends to eat them during copulation .However ,the threat of death does not damage a male’s sex drive. In fact ,once the males head has been chewed off, a nervous reflex causes him to copulate more vigorously--;and only if he carefully avoids her fore legs and makes hasty retreat can he avoid being eaten . Kidnapping and Child marriage are a curse not only for Indian humans for Male Hamadryas Baboons kidnap young females from their mothers to add to their personal harems . Male spiders of some varieties try wooing the females with a nuptial gift of an insect wrapped in silken cocoon and enter courtship cautiously to avoid being eaten by the larger predatory female . One species of American Catfish has an unusual mating technique whereby the female drinks the male’s sperms . The desert living male decorated cricket courts his mate by offering her a delicious meal as a tasty gift.-As the male mates he transfers two things –a capsule full of sperm and a large blob of a gelatinous substance to eat .
  • 7. Strange Events 49 When African species of Velvet worm is ready to mate it sticks sperms on any part of females body and they are absorbed through skin and allowed to swim to eggs inside .; But Australian species have bumps and syringe like shapes on their head and the male takes out and carries sperms on his head and then delivers them to female by poking his head into her cloaca .