Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Domestic pigs average a top speed of about 11 miles per hour.
182
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
Only 3% of bird species have penises.
0
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40