Black squirrels, a color variation of the eastern gray squirrel, may be thriving in urban areas because they are more visible to drivers and less likely to be hit by cars, according to a new study. Researchers surveyed roadkill in Syracuse, New York, and found that black squirrels were 30% underrepresented among squirrels killed by motorists, suggesting natural selection may be favoring them in cities. Previous research shows that people detect black squirrels faster than gray ones, giving drivers more time to react and avoid collisions. <br>