Look at the layers or large sections of skin on a rhinoceros and it’s easy to believe they have some of the toughest skin in the animal world. The skin of a rhinoceros is two inches thick.

The rhinos have some of the toughest animal skin with an average two inches thickness in some areas. The layers of their skin made of collagen make their skin tough against predators like lions or ...

Blubber is a thick layer of fat found under the skin of modern marine mammals such as whales. Its discovery in this ancient "sea monster" - an ichthyosaur - appears to confirm the animal was warm ...