The penguin is the only bird that can swim, but cannot fly.
1
If a Lobster loses an eye, it will grow another one.
62
Contrary to popular belief, dogs do not only sweat by salivating. They also sweat through the poors on their feet.
30
When cats are happy, they may squeeze their eyes shut.
10
A female ferret will die if it goes into heat and cannot find a mate.
143
Certain frogs (like the Wood Frog) can be frozen, thawed, and survive!
196