The nurse shark has thousands of small notched teeth. The jaws of the nurse shark are powerful and are used to crush hard prey, including shellfish. Fish, shrimp and squid compose the other portions of the nurse shark's diet.
The nurse shark is a bottom-dwelling species that typically sits motionless along the sand as it patiently waits for prey. Unlike other sharks, the nurse shark can breathe without maintaining a constant motion. The nurse shark can grow to 14 feet in length and weigh more than 700 pounds, although most are significantly smaller. Nurse sharks inhabit shallow, tropical waters of the western Atlantic and the eastern Pacific oceans.