Each hump can store up to 36 kilograms of it, which can sustain the camel for weeks or even months without food. And that sort of adaptation was especially important 3.5 million years ago ...

The ancient camel question is: One hump or two? Arabian camels, also known as dromedaries, have only one hump, but they employ it to great effect. The hump stores up to 80 pounds of fat ...