Hammers sharks they usually prefer warm water, however, if it is a good meal, they are ready to cool down. Sharks can dive as far as 800 meters from tropical waters into the cold depths of the ocean to hunt fish and squid.

The study, published Thursday in the journal The science shows how one species, sharks”Sphyrna Levini” or toothed hammerhead sharks, keep warm during your dives: They close their gills, effectively holding their breath..

This temperature regulation has never been seen before, as great white sharks or Atlantic tuna use very different strategies to withstand extreme cold.

OUR Mark RoyerA shark biologist at the University of Hawaii at Manoa, said: “While it is clear that marine mammals hold their breath while diving, we did not expect sharks to do something like this.”

“This previously unobserved behavior shows that these hammerhead sharks have feeding strategies that are very similar to those of some marine mammals, such as some whales,” he added.

A team of scientists installed a sensor package near the dorsal fins of six hammerheads near Hawaii. So they noticed that even when the water was very cold, the sharks maintained a constant temperature.