But, chillingly, it's not the first time animals have been caught on camera eating humans alive. We take a look at similar heart-wrenching fatalities involving animals caught on tape. One ...

The human interest is classed as trivial because human beings don't need to eat meat in order to live. The animal interest in staying alive is classed as basic, because if the animal is killed ...

The largest members of the species aren't just able to kill large animals ... we will learn about a man-eating crocodile that has hunted 300 people and may still be alive today.

This means that they need to get nutrition so that they can stay alive. While plants get their nutrition through their roots from the soil they are planted in, animals need to eat food to get theirs.