Why can camels survive for long without water?
Camels use the fat in their humps to keep them filled with energy and hydration for long periods of time.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Why can camels survive for long without water?
### Input: 
### Response: Camels use the fat in their humps to keep them filled with energy and hydration for long periods of time.