The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Lobsters have blue blood.
476
In 1949, an official boxing match between a bear and a man was held. The bear won.
41