These deep masses of water, at temperatures barely above freezing, circulate slowly, transporting equatorial warmth to the polar seas. Differences of small fractions of a degree can be highly ...

Hammerhead sharks hold their breath on deep water hunts to stay warm Date: May 11, 2023 Source: University of Hawaii at Manoa Summary: Scalloped hammerhead sharks hold their breath to keep their ...

Unlike shallower, warm-water reefs that thrive on sunlight, deep-water reefs are chilly, dark and deep. Temperatures in these reefs range from a brisk 39 to 54 degrees Fahrenheit, and they can be ...