Why do polar bears have white fur?
Show answer & explanation
Answer: Camouflage in snow and ice
Cooling system in Arctic — Wrong. Arctic doesn't need cooling—needs insulation! White fur provides camouflage. Black skin underneath actually absorbs heat.
Camouflage in snow and ice ✓ — Correct! Arctic camouflage! Polar bear fur appears white: (1) Camouflage—blends with snow/ice during seal hunting (stalking). (2) Individual hairs are transparent, hollow—scatter light (appears white). (3) Skin underneath is black—absorbs heat. Fur isn't actually white—light reflection creates color. Can appear yellow/brown from oxidation/algae. Dense undercoat + guard hairs insulate. Cubs born with white fur. Excellent stealth predator—seals don't see approach!
White attracts prey animals — Wrong. White doesn't attract prey—it conceals predator. Polar bears hunt seals, using white fur as camouflage on ice.
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