All clams start out as males; some decide to become females at some point in their lives.
50
Over 10,000 birds a year die from smashing into windows.
47
All the swans in England are property of the Queen.
36
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
-1
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
Female kangaroos have three vaginas.
2
Black Whales are born white.
41
