Facebook video screengrab A tourist visiting the Caribbean had to be flown to a hospital after being attacked while trying to “engage” with a shark ... reef sharks, nurse sharks, lemon ...

Nurse sharks (Ginglymostoma cirratum), which ... sources to hire the fishers to do research,” Chapman said. A Caribbean reef shark in Belize. Image courtesy of Hector Martinez.

The “surprise” birth of a gray nurse shark in Australia is good news for the endangered predator species. Getty Images/iStockphoto Months after endangered gray nurse shark Mary-Lou was seen ...