Black squirrels the result of 'interbreeding' grey squirrels, study finds

Whatever the case, they wrote, black fur remains a rare thing for squirrels in North America, occurring at rates of less than 1% in the two species. But already, they noted in a statement, it's made its way over to the United Kingdom — likely through black squirrels from the U.S. that escaped from private zoos in the U.K.

Black squirrels the result of 'interbreeding' grey squirrels, study finds

Black squirrels evolved when greys and fox squirrels historically bred, Cambridge researchers find.

Tue 13 Aug 19 from BBC News

Interbreeding turned grey squirrels black: study

Research published in the journal BMC Evolutionary Biology has shed new light on why some grey squirrels are black.

Tue 13 Aug 19 from Phys.org

Interbreeding turned grey squirrels black -- study, Tue 13 Aug 19 from Eurekalert

Scientists Figure Out Why There Are Black Squirrels All Over the United States

A team of biologists from the United Kingdom thinks that they've decoded the mystery of all the gray squirrels running around the United States with black fur.

Wed 14 Aug 19 from Livescience

Interbreeding turned grey squirrels black

New research has shed new light on why some grey squirrels are black.

Tue 13 Aug 19 from ScienceDaily

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