Hammerhead sharks are first fish found to ‘hold their breath’

From Nature, 11 May 2023: Because it makes them better hunters, scalloped hammerhead sharks (Sphyrna lewini) have evolved a unique method to avoid losing body heat when they dive for prey in deep, cold waters: they close their gills. Numerous fish and marine-mammal species are known to dive from the warm surface to deeper waters Continue reading Hammerhead sharks are first fish found to ‘hold their breath’

Citizen science a winner for shark conservation

From ABC News in Science, 24 April 2014: Citizen science has proven its worth by delivering better quality data on shark populations than conventional acoustic tagging methods, and at lower cost. Researchers from Australia and Palau compared data collected by professional dive guides in Palau with acoustic telemetry data from tagged sharks at the same Continue reading Citizen science a winner for shark conservation