Which macromolecules is used for insulation in animals?

Fats and oils are macromolecules used for insulation in animals. They are stored in fat cells and act as a layer beneath the skin, providing insulation against heat loss. Fats and oils have low thermal conductivity, which means they do not conduct heat well. This property helps to keep the body's core temperature stable by preventing heat from escaping. In animals that live in cold climates, such as polar bears and seals, a thick layer of fat provides essential insulation, allowing them to survive in freezing temperatures.