Hump (anatomy)
A hump is a round mass of fat or muscle that occurs naturally in many animal species, especially in mammals. Humps often serve as fat reserves, allowing the animal to survive without food for extended periods of time. A hump can also help an animal to regulate body heat in hot climates. Some humps consist of muscle instead of fat, which can help the animal dig through hard soil, hold up a heavy head, or maneuver around in snow.
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