Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Alligators can live up to 100 years.
337
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The station master and operating officer at the Kishi Station, Japan, is a cat!
18
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14