Strange Events in Bio World chapter 6 Senses P 18 19
1. Strange Events Chapter 6 18
OH ! WHAT A SENSE
Like us the animals also require a battery of senses
for various purposes including tracking down food
but some rely more on one more highly developed
sense than another and it makes all the difference :
The Starfish , Kiwis , dogs ,wolves, and many others
rely mainly on their power of smelling through ‘nose’
but ‘nose’ of Kiwi is in its beak , of starfish in its arms !
and of Indonesia’s Komodo dragon is in its tongue, hence
it can ‘taste’ the slightest trace of smell-even single molecules .
Kiwis can smell worms 3 cms underground
and Grey wolves their prey 2.5 kms away .
Eagles, hawks, kites and scavenger birds
have a very keen eyesight but frogs can’t
‘see’ well, even though they have large eyes
and detect prey’s moves using special receptors
in the retina at the back of their eyes .
2. Strange events 19
Antelopes and foxes rely on highly sensitive ears ;
In fact bat-eared foxes of Africa listen for insects
under the ground-even termites moving inside tunnels .
But hexapoda Pond skaters ,although they have no ‘ears’
find their prey by detecting ripples in water ;In fact they are
natural mathematicians catching insects trapped in water’s
surface film by calculating the direction of origin of ripples .
The Pipistrelle bat of North America has
a built in barometer –the Vitali organ in its ears
with which this cave dweller can sense whether or
not weather outside is favourable for hunting insects .