No one knows why a duck's quack doesn't echo. The ostrich's brain is smaller than its eye. A chicken once flew thirteen seconds, which is a record for them. Turkey's will drown if left in the rain. They tend to hold their head up to the rain.
Turkeys are also brighter in the wild than in captivity.
You can not lead a cow downstairs, but you can lead them upstairs. Of all the primates humans are the only ones without palm pigments. Under black light a cat's urine glows. Every mammal can jump except elephants. Clocked at 60 mph the cheetah is the fastest known animal.