In a phone call the seller, who claimed he works in Denmark with his wife and that the cubs are in Iceland, said the cheetahs are 'very, very safe' and will grow no bigger than a dog.

From waterfalls that seem to disappear into nowhere to blood-colored water, these places are shrouded in mystery-even if science can explain most of them.

Jellyfish have an array of traits that differ between species such as a temporary anus. Read here to learn more about these ...

Some creatures can dramatically alter their internal temperature — a strategy called heterothermy — and outlast storms, ...

It can grow over 2m long, is made up of 400 body segments and makes a strange gurgling sound as it moves beneath the ground.

Firefighters recall battling river currents, reviving dogs and responding to some of Cork’s strangest emergency call-outs.