A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30
Billy goats urinate on their own heads to smell more attractive to females.
31
Some species of fish have voices!
81
Sheep can survive for up to two weeks buried in snow drifts.
260
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Some ribbon worms will eat themselves if they cant find any food!
37