Final answer:
Chipmunks have storable cheeks to transport food, which is an adaptation different from mechanisms like fur or fat that are used by other animals for heat conservation.
Step-by-step explanation:
Chipmunks have storable cheeks to transport food. This adaptation is not related to heat conservation or insulation like fur or fat layers are in other mammals. Animals like polar bears and seals use fat and thick fur or feathers to maintain a constant body temperature in cold environments. Chipmunks gather food and use their cheeks to carry it to their burrows for storage, ensuring they have a supply of food when it is less available.