Condoms were originally made of animal intestines or linen.
347
The reindeer is the only mammal that can see UV light.
17
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2