Bats sleep 18-20 hours per day.
5
Roosters can't crow if they can't fully extend their necks.
28
Alligators can live up to 100 years.
337
Under extreme stress, some octopuses will eat their own arms.
198
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The penguin is the only bird who can swim, but not fly!
90
Ralph, the world's largest bunny, weighs 55 pounds and eats $90 worth of food a week.
8
Female kangaroos have three vaginas.
2