Respuesta :

meerkat18

Animals store most of their excess energy reserves as glycogen because storing of energy is useful for example in processes which require minimal or no movements at all like sleeping or hibernation. This is common to bears living in cold areas. 
KayleneM

Animals store most of their excess energy reserves as fat because they store twice as much energy per gram.

That's the answer ur looking for ^^

Hope that helps!

Good luck :)