There are approximately three chickens for every human on Earth.
13
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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 scorpion can hold its breath for up to 6 days.
19
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
In Australia, there are spiders big enough to eat snakes.
20