Dogs can make about 100 different facial expressions.
18
Moths are unable to fly during an earthquake.
328
When you shave a guinea pig it looks like a little hippo.
19
In just about every species of mammal, the female lives longer than the male.
43
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The elephant brain weighs about 6,000g.
274
