Cats and dogs can hear ultrasound.
350
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Rattlesnake mating sessions have been known to last more than 22 hours.
232
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-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
In Australia, there are spiders big enough to eat snakes.
20
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23