Don't hold your breath: how hammerheads maintain temperature - study
Shark gills can act as natural radiators, cooling down the blood, mussels and organs of a shark.
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Shark gills can act as natural radiators, cooling down the blood, mussels and organs of a shark.
Researchers have made possibly the first discover of a fish which essentially holds its breath as it deep dives for prey in icy depths.
A researcher from the University of Hawaii at Manoa discovered something that was “a complete surprise” while studying scalloped hammerhead sharks.
The sharks hold their breaths for an average of 17 minutes.
Sharks are ectotherms and their internal body temperatures usually reflect the waters they swim in. Holding their breath helps them function in the frigid deep.