Sharks possess an unparalleled sensor of sorts that allows them to pick up on the tiniest of electrical fields from living things in nearby waters.
BEN RENNER: ‘Sharks are one of the most fearsome predators on the planet. Their bodies and their senses — from smell to sight to touch — are all tuned for one thing: finding and killing prey. This latest research, funded by the National Institutes of Health, was aimed at finding the links between evolution and the senses in animals. Instead it wound up revealing how sharks possess an unparalleled sensor of sorts that allows them to pick up on the tiniest of electrical fields from living things in nearby waters.
“Sharks have this incredible ability to pick up nanoscopic currents while swimming through a blizzard of electric noise. Our results suggest that a shark’s electrosensing organ is tuned to react to any of these changes in a sudden, all-or-none manner, as if to say, ‘attack now,’” explains Dr. David Julius, professor and chair of physiology at the University of California, San Francisco and senior author of the study’. SOURCE…