Scientists have worked out why some squirrels have black fur in a groundbreaking new study. They discovered the unusually coloured black squirrel is the result of interbreeding between fox and grey ...

Black squirrels are the result of "interbreeding" between their grey cousins and the North American fox squirrel, a study has concluded. Research published in BMC Evolutionary Biology found the black ...

It may sound a bit nuts but black squirrels are the result of the grey squirrel interbreeding, a study suggests. The two squirrels are the same species, with the only difference being their fur colour ...