becausefrog t1_jed2wlo wrote
Reply to comment by New-Vegetable-1274 in Can anybody identify this pure white bird I saw in Watertown? by zzztak
Red squirrels are a different species than grey squirrels, but black squirrels are a gene mutation which can occur in either species. It's really fascinating. Melanism doesn't occur in humans but can be found in mammals, birds, and even lizards.
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