ocr: Desert tortoise Tortoises range from the tiniest species upt to giant Galapagos tortoises that may weigh upto7 700 pounds. The desert tortoise of the southwestern USA is quite small, and is adaptedto life in a - very harsh and dry environment. These tortoises feed on grasses and herbs during the cool of - the early morning and late afternoon. In the heat of the day they retreat to underground burrows sometimes upto30 feet long.
