A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A lion in the wild usually makes no more than twenty kills a year.
186
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
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
16
Alligators can live up to 100 years.
337
Tigers can see 6 times better at night than humans.
305