The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
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
Mosquitoes don't just bite you, they also pee on you.
11
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Jellyfish as a species are actually older than dinosaurs and sharks.
383