Humans and dolphins are the only species that have sex for pleasure.
61
On average, it takes 660 days from conception for an elephant to give birth.
19
Dogs can make about 100 different facial expressions.
18
An elephant's tooth can weigh as much as 12 pounds.
24
A hippo can open its mouth wide enough to fit a 4 foot tall child inside!
23
Koala Bears are not bears.
34
Rats can't vomit, that's why rat poison works.
68