Whhy do camels have humps? 駱駝為什么長驢峰?

Camels keep fat in their humps. In the desert.there is not a lot of food. Camels use the fat in theirhumps for food， so they can survive for a long timewithout eating. As camels use the fat， their humps getsmaller.

In Egypt， camels have been used for long trips forover 3，000 years. It is really a long time！

中文大意

駱駝的駝峰里儲藏著脂肪。在沙漠中沒有充足的食物，駱駝就消耗駝峰里儲藏的脂肪充當食物。這樣，就算很長時間不吃東西，駱駝也不會餓死。當駱駝使用駝峰中的脂肪時，駝峰就會變得越來越小。

3000多年來，埃及人一直把駱駝當做長途旅行的交通工具。這真是有很長時間了。