When cats are happy, they may squeeze their eyes shut.
10
The cat brain weighs about 30g.
167
Cows can sleep standing up, but they can only dream lying down.
745
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
Domestic pigs average a top speed of about 11 miles per hour.
182
The Basenji dog is the only dog that is not able to bark.
4