Sharks have been on the planet longer than trees.
14
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The elephant brain weighs about 6,000g.
274
Only 3% of bird species have penises.
0
Denmark has twice as many pigs as there are people.
66