It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Early American humans hunted car-size armadillos and used their shells for houses.
12
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Cats and dogs can hear ultrasound.
350
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Tigers can see 6 times better at night than humans.
305