Nurse Shark GALLERY.

Ginglymostoma cirratum

Nurse sharks often will rest during the day in protected areas. Nurse sharks don't have a lower lob on their tails and their heads are the widest part of their body. They are night feeders and have two short barbels on their upper lip that they use to find their food. They eat fish, stingray, mollusks (like squid and octopi) and crustaceans.  Lemon sharks and tiger sharks feed on nurse sharks. Although generally considered a docile species, Nurse Sharks do have teeth (not like other sharks, though) and can bite severely if provoked.  Average length: 7-9 feet. Here in the Caribbean they are also known as the "Cat Shark" because of their resemblance to the catfish. For more info Go Here (external Link)