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
Bats sleep 18-20 hours per day.
5
Drivers kill more deer than hunters do.
660
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Cats recognise the voice of their owner, but never evolved to care.
22
A lion in the wild usually makes no more than twenty kills a year.
186