1. Walrus: All about the blubber
2. Emperor Penguins: Insulation and cold air convection
3. Caribou: Lichen those sub-zero temps
4. Musk Ox: They survived an ice age, no big deal
5. Snowy owls: Hedwig's fine, but she didn't live in the Arctic
6. Snowshoe Hare: One blink and you'll miss it
7. Japanese macaques: Borrowing your hot tub since 1963
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