Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Only 3% of bird species have penises.
0
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
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