Here's why:
* Energy reserve: The fat stored in the humps serves as a source of energy for the camel when food and water are scarce. This is crucial for their survival in harsh desert environments.
* Water source: When the camel metabolizes the fat, it produces water as a byproduct, further aiding its survival in arid conditions.
* Heat insulation: The humps also help insulate the camel from extreme temperatures, keeping it cool in the scorching desert heat.
Interestingly, camels can lose their hump: If a camel doesn't have enough food and water, it will use up the stored fat in its hump, causing it to shrink and become less prominent. However, once the camel has access to food and water again, it can regain its hump size.