The Wallaroo is a macroscopic that is part of the kangaroo family. These sturdy marsupials generally are reddish-gray, tan, black or deep gray in coloration. Three distinct species of Wallaroos exist, which are the common Wallaroo, the antilopine wallaroo, and the black Wallaroo. Common Wallaroos grow to over 5 feet tall and weigh around 120 pounds. Common Wallaroos eat herbivorous diets that consist mostly of soft-textured grasses. These grazing animals can survive for several months at a time without drinking H20.