How does animals store energy

Animals (or plants) store solar energy as chemical energy between atoms of their molecules.

For example : ATP is phosphate energy bonds stored by animals in their molecules.

For more stable form animals also store energy in carbon bonds called carbohydrates. The most common e carbohydrates are starch, sugar and fats. Animals have enzymes to convert these forms of energy into actual form which they use for their activities like move, run or fly.