Birds and turtles, two animals that seem unrelated, actually have a shared gene allowing them to see more shades of red than humans can see. This means that birds and turtles have the same 250 million year old ancestor. Even cooler, because birds descended from dinosaurs, there is a strong possibility that dinosaurs also viewed the world in red!


Image Source: By Brocken Inaglory (Own work) [GFDL ( or CC BY-SA 4.0-3.0-2.5-2.0-1.0 (], via Wikimedia Commons