When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A group of pugs is called a grumble.
10