Killer Whales Showed Way to Grandmothers

06.03.2015

It turns out grandmothers are actually an evolutionary mechanism that was developed over the centuries in communities of different animals. This is the conclusion of scientists who were watching killer whales. These marine mammals leave female,s who have stopped reproducing, in the family to teach the younger animals and to look after the kids. That's why after menopause females of some mammals live long and full life.

Killer Whales Showed Way to Grandmothers

In addition to human females and killer whales the «grandmothers club» also includes females of pilot whales, large marine mammals, occupying an intermediate place between dolphins and whales. Killer whales live and hunt in families: young male and female, as well as the mother of the male, who remains with pups when more powerful individuals are engaged in hunting. Moreover, «grandmothers» train youngsters all the details of hunting for salmon, the main source of food for this species.