What is the main function of glycogen in animals?

Glycogen serves as a crucial storage form of energy in animals. This polysaccharide is primarily stored in the liver and muscles and can be rapidly converted back into glucose when energy is needed. When an animal engages in activities that require energy, such as exercise or metabolic processes, glycogen can be broken down through glycogenolysis to provide a quick supply of glucose. This allows for sustained energy release, which is vital during periods of high energy demand. The ability of glycogen to be mobilized easily and efficiently makes it an essential component of energy management in animal physiology.