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The Biology of Love 3rd Version

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This is the updated version of the lecture I give to my biology students each year on Valentine's Day. Please leave me a comment if you enjoyed it. If you download it for your own use, please leave ...

This is the updated version of the lecture I give to my biology students each year on Valentine's Day. Please leave me a comment if you enjoyed it. If you download it for your own use, please leave me a comment telling me how you will be using it.
www.missbakersbiologyclass.com
www.missbakersbiologyclass.com/blog

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The Biology of Love 3rd Version The Biology of Love 3rd Version Presentation Transcript

  • The Biology of Love * *Please note. This discussion in no way attempts to discuss love in a religious context. Rather it is merely an entertaining way to learn about the sometimes comical world of biological reproduction. By Miss Baker missbakersbiologyclass.com
  • If not for sex[ual reproduction], much of what is flamboyant and beautiful in nature would not exist . –Olivia Judson, Dr. Tatiana’s Sex Advice to All Creation
  • Why Sex?
  • A sexual organism has only 50% of the fitness of an asexual organism.
  • You Have to Find and Woo a Mate
  • You Have to Fight to Win Their Love
  • You'll Be More Conspicuous to Predators
  • Sex Increases Risk of Diseases That Lead to Sickness Infertility Death
  • So, Why Sex?
  • The Red Queen Hypothesis
  •  
  • Lucky in Love Sex is like the best strategy for winning the lottery
  • Greater Success Increasing Variety =
  • The Difference Between Males and Females
  • Between 1725-1765, the Wife of Feodor Vassiyev had 69 Children In Her 27 Pregnancies She Gave Birth to 16 Pairs of Twins 7 Sets of Triplets 4 Sets of Quadruplets
  • 1,042 Children
  • Love is Like a Game of Chess It's All About Strategy
  • Base Your Decisions on the Environment in Which You Live Make the Choice That Will Lead to the Greatest Number of Successful Offspring!
  • Monogamy... My Heart Beats Only For You
  • Polygamy... I Love You and You and You and You and
  • Monogamy Polygamy Less disease risk More diversity in offspring Can mate guard Produce more offspring Lower infanticide Less commitment Form social bonds Less male competition
  • How Many Offspring Should You Have?
  • If You Decide to Have Few...
  • You Must Provide Parental Care
  • If You Decide to Have Many... You Won't Have to Provide Parental Care
  • That You'll Die Soon Afterwards But, You'll Probably Be So Exhausted
  • Are You a Desperate Male?
  • Commit Sexual Suicide It's Better to Have Loved and Lost Then to Have Never Loved at All!
  • Or Allow Yourself to Be Exploited And Persist as a Tiny Blood-Sucking Parasite Attached to the Female's Body
  • What if a Member of the Opposite Sex is Not Available? Get a Sex Change!
  • But, What if You're Alone?
  • Shy?
  • Rejected?
  • Unable to find a mate?
  • All is Not Lost
  •  
  • Go Asexual But, Remember You Lose the Benefits of Sex So Switch Back When Possible
  • Arguably the Most Exquisitely Evolved Mating Behaviors Belong to Class Aves
  • The Greatest Human Mating Behavior of All Time And Now for the Finale Drumroll Please
  •  
  • The End
  • Photo Credits http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Callorhinus_ursinus_and_harem.jpg/300px-Callorhinus_ursinus_and_harem.jpg M. Boylen 20 http://www.flickr.com/photos/wtlphotos/1045750850/ WTL 19 Found on Creative Commons Flickr Search Can you identify? 18 http://www.flickr.com/photos/poppyw/348928452/ PoppyW 17 http://en.wikipedia.org/wiki/Image:Moulay_Ismail.jpg Unknown 16 Found on Creative Commons Flickr Search Can you identify? 15 http://www.flatrock.org.nz/topics/society_culture/assets/sex_differences.jpg Steven Rhoads 14 http://cache.gizmodo.com/assets/resources/2007/05/dpuzzle_640.gif Unknown 13 http://bp3.blogger.com/_92E8fZ0HCXg/Rx5CWQhSyxI/AAAAAAAABJQ/t-P_NSFEcyo/s1600-h/lottery+balls.jpg Unknown 12 http://www.proteusadvisors.com/uploaded_images/Red-Queen-733514.jpg John Tenniel 11 http://www.alice-in-wonderland.net/alicepic/disney-movie/alice-with-queen-of-hearts.jpg Unknown 10 http://www.scienceagogo.com/news/img/sperm_egg_1is.jpg Unknown 9 http://www.health2know.com/images/herpes.jpg Lampron 8 http://l.yimg.com/img.tv.yahoo.com/tv/us/img/site/81/22/0000038122_20070301141540.jpg Billy Campbell 7 http://cache.viewimages.com/xc/3290720.jpg?v=1&c=ViewImages&k=2&d=C06051C8BA2A5A2C4196C3EDFEC0E7E6A55A1E4F32AD3138 Unknown 6 http://www.birdsasart.com/Royal-terns-courtship-feeding-DeSoto-FL-_H2D8575.jpg Arthur Morris 5 http://upload.wikimedia.org/wikipedia/commons/f/fc/Evolsex-dia1a.png Michael Reeve 4 http://www.scienceagogo.com/news/img/sperm_egg_1is.jpg Unknown 3 URL Photographer Slide #
  • http://www.flickr.com/photos/ucumari/427035041/ ucumari 41 http://www.moviewallpapers.net/images/wallpapers/1977/saturday-night-fever/saturday-night-fever-1-1024.jpg Unknown 40 http://www.flickr.com/photos/ryanwhisner/363966960/ Sailing Nomad 38 http://homepage.mac.com/wildlifeweb/reptile/komodo_dragon/komodo_dragon_04tfk.jpg Tim Knight 37 http://www.rivalryrecords.com/BAND_LOGOS/logo_GoItAlone_LP.jpg Unknown 36 http://images.jupiterimages.com/common/detail/96/47/23494796.jpg Mike Kemp 35 http://www.flickr.com/photos/arnar/95116503/ Arnar Valdimarsson 34 http://photomediamagazineonline.com/wp-content/uploads/2006/10/JG-monkeysuitff.jpg Jill Greenberg 33 http://www.flickr.com/photos/ucumari/580865728/ ucumari 32 http://www.flickr.com/photos/lindenbaum/360684002/ tlindenbaum 31 http://www.flickr.com/photos/the_road_ahead/130768000/ Kawa0310 30 http://rmbr.nus.edu.sg/news/images/20050129-photocorynus_spiniceps-male_female.jpg T.W. Pietsch 29 http://www.flickr.com/photos/tarynmarie/233251372/ TarynMarie 28 Found on Creative Commons Flickr Search Can you identify? 27 http://www.anvious.com/archive/photoblog/061026.jpg Anvi 26 http://www.bpa.gov/corporate/BPANews/Library/images/fish/Chinook_eggs.jpg Unknown 25 Found on Creative Commons Flickr Search Can you identify? 24 http://www.flickr.com/photos/marthaenpiet/2093911204/ Martha de Jong-Lantink 23 Found on Creative Commons Flickr Search Can you identify? 22 http://www.flickr.com/photos/jamespreston/88920149/ http://www.flickr.com/photos/brianscott/283824665/ James Preston Brian Scott 21 alb 21 lion URL Photographer Slide #