The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
In Australia, there are spiders big enough to eat snakes.
20
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Bats sleep 18-20 hours per day.
5
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
A puppy is born blind, deaf, and toothless.
16