The most famous kangaroo is red kangaroo, which is the largest and lives in the arid zone of Australia. The average annual rainfall in this area is less than 500mm. Because kangaroo's food contains a lot of water, it can survive in areas without running water. In fact, only male kangaroos are red and female kangaroos are gray-blue in red kangaroo, but red female kangaroos have also appeared under the conditions of group breeding and hybridization.

Red kangaroo, which lives in the open grassland in southeastern Australia, is the largest marsupial and a representative species of kangaroo, and is called the king of modern marsupials. This big red kangaroo looks like a mouse, like a giant mouse. In fact, kangaroos are not related to mice. Red kangaroo's body hair is reddish brown.