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Why do animals in hot climates have larger ears than those in cold climates?

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Animals in hot climates tend to have larger ears compared to those in cold climates because larger ears help with heat regulation. The larger surface area of the ears allows for more efficient dissipation of heat through blood vessels close to the skin's surface. This helps the animal stay cooler in hot environments. Additionally, the thin skin on the ears helps in dissipating heat through radiation.

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