Yawns are more contagious among people with closer relationships.
163
The drummer for the rock group Def Leppard only has one arm.
156
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
Sloths take two weeks to digest their food.
243
There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
10