Why do sharks fear dolphins: an unexpected response from scientists?

Mammals with high intelligence and complex social life are able to jointly kill a single predator, the magazine “Around the World” writes.

It’s all about the development of the nervous system and the mechanisms of behavior at first glance, but very different animals. After all, sharks are cartilaginous fishes, ancient and primitive inhabitants of the oceans, guided in their behavior by instincts. And dolphins are water mammals, leading a complex social life, hunting and defending themselves jointly against predators. When these two species meet, the shark, acting as the orderlies of the sea, immediately isolates the weakest link in the flock of dolphins – the old, sick or injured dolphin. Winding around the chosen victim circles in a spiral, the predator waits time for a convenient throw. But dolphins, with their highly developed intelligence, quick reaction and communication ability, in most cases notice the shark in time and give a collective rebuff to it: they surround the predator and begin to beat it into the gill slits, damaging them. Unable to receive oxygen from water, a shark is often doomed to death.