This photo released by the Denver Zoo on Thursday, shows Elliot, right, an endangered Grevy's zebra, with his mother Topaz at the zoo in Denver. There are three different species of zebra; plains or common zebra, mountain zebra and Grevys zebra. Grevys zebras are endangered with less than two thousand left in the wild due to loss of habitat, competition with livestock and poaching
(AP / July 3, 2008)