Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Lobsters have blue blood.
476
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
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Only 3% of bird species have penises.
0
Dolphins have names for one another.
18
Denmark has twice as many pigs as there are people.
66