miércoles, 8 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 8, 2020 5:16:43 PM
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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