Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The average cat sleeps about 2/3 of the day.
203
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
By feeding hens certain dyes they can be made to lay eggs with multi-colored yolks.
40
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The lungfish can live out of water for three years in a state of suspended animation.
48
It's possible to lead a cow upstairs, but not downstairs.
50