One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The Chow and the Chinese Shar-Pei are the only dogs that have black tongues.
32
Chained dogs are 3 times more likely to bite than unchained dogs.
34
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Some breeds of chickens lay colored eggs!
51
A chicken will lay bigger and stronger eggs if you change the lighting in such a way as to make them think a day is 28 hours long!
37
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9