Sloths take two weeks to digest their food.
243
Sharks, like other fish, have their reproductive organs in their chests.
248
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
The elephant brain weighs about 6,000g.
274
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
