The elephant brain weighs about 6,000g.
274
Bats sleep 18-20 hours per day.
5
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Gorillas can catch human colds and other illnesses.
205
In the movie 'The Wizard Of Oz', Toto the dog's salary was $125 a week, while Judy Garland’s was $500 a week.
5
Sloths take two weeks to digest their food.
243
The seahorse is the only fish to have a neck.
12