### Instruction: Rewrite this English sentence to give a better translation.

### English: 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.
### English rewrite: Instead of starch, which is food for plants, it takes something similar to brown fat and burns it at a rate that digests it in the same way as a small cat.