The octopus does not have a blind spot.
273
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Sloths take two weeks to digest their food.
243
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
The oldest recorded elephant lived for 82 years.
213
Sharks have been on the planet longer than trees.
14