Black squirrels have advantages and disadvantages where they are
Doug Wechsler / NaturePl.com
Road accidents appear to be behind Natural selection Black squirrels in the US cities because motorists can be easier than gray.
Gray squirrels (Scrurin Carolinensis), They are known as gray gray squirrels in the US, they have entered countries around the world, but the hometown is the eastern North American. Despite the name, they actually evolve diverse colors. The gray version is the most common, but there are black shapes and …
