One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Alligators can live up to 100 years.
337
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Bats sleep 18-20 hours per day.
5