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
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
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
When you shave a guinea pig it looks like a little hippo.
19
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A lion in the wild usually makes no more than twenty kills a year.
186
The Basenji dog is the only dog that is not able to bark.
4