One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
A lion in the wild usually makes no more than twenty kills a year.
186
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Alligators can live up to 100 years.
337