Lecture 12 Flashcards
What can animals evolve to transition to?
water to land, land to water, land to air and air to land and air to water
What did whales evolve? (land to water transition)
Loss of limbs, nares moved backwards, eyes on side, tail fins (flukes) and bony walled ears
What does a baleen allow whales to do?
Filter feeding, become larger
Complete the sentence:
No clade that has returned to the water has…
Lost its reliability on air
How have birds evolved for air condition’s
Lighter bones and air sacs
Adaptations for birds to swim?
Underwater flying eg penguins
What is a precocial species?
Those who bare young almost able to feed themselves immediately
advantages and disadvantages of short limbs
On land- long limbs are good for locomotion
in water- short limbs with paddle feet are better to swim
