The ground pangolin has a scaly appearance, which is made up of keratin, or the stuff that makes up finger nails. Between 900 and 1000 scales cover the bodies of these walking pinecones. Pangolins will curl up into a tight ball when provoked and use their sharp scales to repel predators. Furthermore, Pangolins can emit a noxious gas from their bowels like a skunk to turn away predators. Pangolins do not have teeth but rather have a gizzard-like stomach. They will even eat sand or rocks to help with digestion. The tongue of a pangolin is very long and can reach lengths up to 16 inches. They can use their tongues to reach into termite and ant mounds.