An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Female kangaroos have three vaginas.
2
Elephants are terrified of Bees and actually have a special, distinct vocalization for “Run away the Bees are angry”
49
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
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
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19