The seahorse is the only fish to have a neck.
12
A 42-foot sperm whale has about 7 tons of oil in it.
209
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Cats recognise the voice of their owner, but never evolved to care.
22
Sloths take two weeks to digest their food.
243
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9