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
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
There's a rare breed of pig that looks like a sheep.
14
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
The Basenji dog is the only dog that is not able to bark.
4
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46