"Their fur, which isn't actually white, but reflects light to appear that way..." Isn't that how colour works in general? The reason an object is red is that it reflects red light.
good question, Polar bear fur is actually transparent and hollow, and their color can appear different depending on the lighting and climate, When the sun is shining, polar bears appear white because their fur scatters sunlight.
"Their fur, which isn't actually white, but reflects light to appear that way..."
Isn't that how colour works in general? The reason an object is red is that it reflects red light.
good question, Polar bear fur is actually transparent and hollow, and their color can appear different depending on the lighting and climate, When the sun is shining, polar bears appear white because their fur scatters sunlight.