List the adaptation of the inhabitants of the ground-air environment to low temperatures.

Inhabitants of the ground-air environment are all animals, insects and birds that do not live in water or underground. At low temperatures, some organisms go into hibernation or hibernation until warming occurs. Some animals have a lot of body fat. It serves as protection from the cold and as a reserve of fat for times when it is very difficult to get food. In addition to the fat layer, animals have wool. It helps to keep the body warm. Birds have feathers, not wool.