Condoms were originally made of animal intestines or linen.
347
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Sharks have been on the planet longer than trees.
14
A group of kittens is called a "kindle".
10
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The male seahorse carries babies and 'gives birth' to them instead of the female.
7