10 by two
The Origin of Black
Black morph of North American gray wolves (Canis lupus), as in this East Glacier pack in northern Montana, traces its origin to hybridization with domestic dogs that crossed Beringia with humans ~14,000 years ago.
Black morph of North American gray wolves (Canis lupus), as in this East Glacier pack in northern Montana, traces its origin to hybridization with domestic dogs that crossed Beringia with humans ~14,000 years ago.