How (and why) animals change color with the seasons

Quick, name a color-changing animal. Did you say octopus? Chameleon? Cuttlefish? Excellent work — but there are a lot more. And they may only change color once a year. » 11/12/12 12:43pm 11/12/12 12:43pm

It's also capable of undergoing a variety of color changes with incredible speed — shifting from a pale, greenish grey color to a…