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Peer pressure forced whales and dolphins to evolve big brains, like humans

Ephrat Livni
Peer pressure forced whales and dolphins to evolve big brains, like humans

The human brain has evolved and expanded over millennia to accommodate our ever-more-complex needs and those of our societies. This process is known as “encephalization” and has given us the big brain we need to communicate, cooperate, reach consensus, empathize, and socialize. The same is true for cetaceans, like whales and dolphins, it seems. These…