Bats sleep 18-20 hours per day.
5
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Cats sleep for 70% of their lives.
8
The seahorse is the only fish to have a neck.
12
Denmark has twice as many pigs as there are people.
66
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Jumping fleas can accelerate 50 times faster than the space shuttle.
218