Cats recognise the voice of their owner, but never evolved to care.
22
The Basenji dog is the only dog that is not able to bark.
4
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
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
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
There's a rare breed of pig that looks like a sheep.
14