Only 3% of bird species have penises.
0
Lobsters have blue blood.
476
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
A dairy cow can produce more milk when listening to music.
446