So instead of having starch, which is the food of plants, it takes something rather similar to brown fat and burns it at such a rate that it's burning fat, metabolizing, about the rate of a small cat.
Så i stedet for at have stivelse, hvilket er føde for planter, bruger den noget lignende brunt fedt, og forbrænder det så hurtigt, at den brænder fedt, forbrænder, omkring så hurtigt som en lille kat.