Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
When cats are happy, they may squeeze their eyes shut.
10
Cats and dogs can hear ultrasound.
350
Bats sleep 18-20 hours per day.
5
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2