Visser said. Fish are made easy pickings for cookie-cutter sharks when they are on fishing lines, Aaron B. Carlisle, a shark biologist at the University of Delaware, told Newsweek.

While fishing in Australia's Coral Sea, Captain T.K. Walker and his crew came across an unusual site—after hauling a large swordfish out of the water, they noticed its body was covered in dozens ...

"The cookie cutter sharks have had a go at this guy," Walker, a former commercial fisher from New Zealand, wrote in a Facebook post on July 19.

The “cookie-cutter attaches itself to the victim, such as tuna, marlin or other sharks, using strong, suckling lips,” Fresh ‘n Salty reports.