American Erwin McCarthy along with his friends went on a boat for fishing. While the others were catching lobsters under the water, McCarthy watched them from the side of the ship. When one of his acquaintances "zag harp" the sea bass, the man jumped in the lead to help pull the prey out. At this point, he was attacked by a shark. According to the injured fisherman, the shark nearly gnawed at his stomach. Saved only by the fact that he held the fish with his hands. In this position, he swam to the ship and climbed up. And all this time the predator did not open his teeth. Released from captivity, the man was able to only after the fish stabbed with a knife, said Life. The mustached shark-nurse is the only representative of its kind (Ginglymostoma). Predatory fish is found in the Atlantic Ocean and in the eastern waters of the Pacific. The maximum depth of the range is 130 meters.

The length of the largest representatives of this species was 4.3 meters.

Shark-nannies feed on benthic invertebrates and are at night. As a rule, for a person they are not dangerous. In the Caribbean Sea off the coast of Florida, people regularly encounter them underwater. Usually, when meeting a person, these sharks behave calmly, and if they are disturbed, they simply swim away. Nevertheless, several attacks were recorded from their side because of the too aggressive behavior of the bathers themselves.