Sheep can recognize other sheep from pictures!
71
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
When it comes time to give birth, the female shark loses her appetite so she won't be tempted to eat her own pups.
280
There are more chickens than people in the world.
325
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The cat brain weighs about 30g.
167