Excess carbohydrates in Animals are stored as fats. It
mainly gets stored in the skeletal muscles and liver in the form of glycogen.
Carbohydrates actually get stored in the form of long polymers of glucose
molecules or as glycogen starch. They provide energy to the animals for
performing their daily duties. Carbohydrates are generally considered the fuel
for all organisms, and without this most animals would become sloth and would
be unable to perform the regular jobs. Carbohydrates are actually very easy to
metabolise and hence generate quick energy.