jueves, 9 de julio de 2020

Explained: What is causing sparrows in North America to change their song? | Explained News,The Indian Express

Explained: What is causing sparrows in North America to change their song? | Explained News,The Indian Express

Explained: What is causing sparrows in North America to change their song?

JULY 9, 2020 7:25:39 AM
Researchers studied the cultural evolution of songs sung by 1,785 male white-throated sparrows over a period of two decades and found that doublet-ending songs spread from east to west, replacing the traditional triplet-ending songs in Canada.

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