Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
When cats are happy, they may squeeze their eyes shut.
10
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A dairy cow can produce more milk when listening to music.
446