The song of the American swamp sparrow

A Duke University biologist and his co-authors have found that American swamp sparrows may have been singing the same songs for 1,000 years. So, passing traditions on for generations isn’t unique to humans.
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A Duke University biologist and his co-authors have found that American swamp sparrows may have been singing the same songs for 1,000 years. So, passing traditions on for generations isn’t unique to humans.