Page 3 - Mark Royer News Today

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.

The way these sharks dive into almost freezing water has puzzled scientists. A new study suggests they can close their gills.

The “completely unexpected” behavior reported in scalloped hammerhead sharks raises questions about how widespread it may be among other species.

Scalloped hammerhead sharks take dramatic dives to hunt for food in cold, deep waters—and new evidence suggests they hold their breath to keep warm while they do so

When hammerhead sharks begin some of their deepest dives, they do the piscine equivalent of what a human would do: they hold their breath.Sharks

Scalloped hammerhead sharks in Hawaii seem to limit the use of their gills during deep dives to prevent losing heat to their surroundings.