Dolphins are like humans in many ways: They're part of complex social networks, and their brains are big relative to their bodies, like ours are. But there's something else, too — a study published Monday shows that they use name-like whistles to identify and communicate with each other.
"In the underwater environment, animals use their own signature whistles to broadcast their identity and say 'I'm here, I'm here,' " says Stephanie King, a marine biologist at University of St. Andrews, and author of the study.
In the first few months of its life, every bottlenose dolphin develops its own unique whistle.
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Source: NPR Science - ingested into KQED