Hammerhead Sharks, The First Fish Specie Holding Their Breath.
The image shows a young scalloped hammerhead shark (Sphyrna lewini) in the vicinity of the ocean surface near Hawaii, with its mouth and gills visibly open. Credit: Biosphoto/AlamyScalloped hammerhead sharks (Sphyrna lewini) have developed a distinctive adaptation to conserve body heat while hunting in frigid depths. In order to enhance their hunting capabilities, they...