Squirrels and possums apparently think being king of the road means piling up the most roadkills for your species. Although ...

black squirrels owe their black color to a consequence of interspecies mating between the gray squirrel and the fox squirrel. The fox squirrel boasts a gene that gives some within its lineage ...

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 ...