Dolphins recognize names

From CNN

Scientists have long known that dolphins’ whistling calls include
repeated information thought to be their names, but a new study
indicates dolphins recognize these names even when voice cues are
removed from the sound.

For example, a dolphin might be expected to recognize its name if
called by its mother, but the new study found most dolphins recognized
names — their signature whistles — even when emitted without
inflection or other vocal cues.

More than that, two dolphins may refer to a third by the third
animal’s name, said Laela Sayigh, one of three authors of a paper
published in the Proceedings of the National Academy of Sciences.

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