The marten is one of the most cunning and bloodthirsty predators in the animal kingdom. Despite its cute appearance, this small, fluffy creature is a tenacious hunter, capable of attacking and ...

Hero dog Duke defended his neighbourhood from a pack of bloodthirsty coyotes Credit: OC Animal Care. 3. The pup fought for 45 agonizing minutes Credit: KTLA.

Humans have driven sharks and their cousins to the brink of extinction. The health of the entire ocean is at stake.