At birth, a panda bear is smaller than a mouse.
40
The heart of a mouse beats 650 times per minute!
53
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Under extreme stress, some octopuses will eat their own arms.
198
The station master and operating officer at the Kishi Station, Japan, is a cat!
18
Alligators can live up to 100 years.
337
The sloth (a mammal) moves so slowly that green algae can grow undisturbed on its fur!
104