What hypothesis attempts to explain the higher frequency of black squirrels in colder, northern areas?
Answer
Dark fur absorbs solar radiation more effectively for warmth
One leading theory suggests that darker fur offers a survival advantage in colder climates because it absorbs solar radiation more efficiently, providing necessary extra warmth.
Related Questions
What specific condition causes Eastern Gray Squirrels to exhibit a completely black coat?What type of gene is the primary genetic driver behind the black coat color in Eastern Gray Squirrels?Which closely related squirrel species might share the same genetic pathway for its black phase?Where are black Eastern Gray Squirrels notably concentrated across North America?What hypothesis attempts to explain the higher frequency of black squirrels in colder, northern areas?Despite the difference in appearance, how are black and gray Eastern Gray Squirrels classified biologically?What historical interaction between species might have reinforced the melanistic gene in specific geographic locations?What historical human action can quickly establish a strong local population of black squirrels due to the gene's nature?If a local sighting survey shows a sudden increase in black squirrels where only grays were historically noted, what might this imply about the past?Why is the melanistic trait not easily removed from the gene pool in warmer regions, even if dark fur might cause thermal stress?