Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Cats and dogs can hear ultrasound.
350
Sharks, like other fish, have their reproductive organs in their chests.
248
The elephant brain weighs about 6,000g.
274
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11