Sheep, goats, octopuses, and toads have rectangular pupils.
7
Parrot parents "name" their children with a signature call.
112
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The largest earthworm on record was found in South Africa and measured 22 feet.
151