Page 4 - Mark Royer News Today

Sharks are cold-blooded and their body temperatures are largely regulated by their immediate environment.

Even for cold-blooded sharks, the deep ocean is frigid. To tolerate low temperatures as they dive for deep-water squid, scalloped hammerheads close their gills

University of Hawai‘i at Mānoa researchers published their discovery in Science that scalloped hammerhead sharks hold their breath for warmth while diving deep to hunt for prey.

Sharks are cold-blooded and their body temperatures are largely regulated by their immediate environment.

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.

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.

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.

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.

Sharks are cold-blooded and their body temperatures are largely regulated by their immediate environment.

Sharks are cold-blooded and their body temperatures are largely regulated by their immediate environment.