Males are larger than females in all species. The smallest is the female Warabi Rock Wallaby which is 2 pounds. The largest Kangaroo is the male Red and Grey which weigh 200 pounds. Some Kangaroos live alone, some live in families with a bond that lasts a lifetime, while some travel in large mobs. A Kangaroo can sprint 40 mph over a 1-2 mile distance and 20 mph for long distances such as 10 miles or more.
Kangaroos are shy, mainly nocturnal animals, but some species are active at dawn and dusk.
Generally, they live for 20 years in captivity and approximately six years in the wild. Our Australian Kangaroos are going blind. In the last 12 months a virus has been spreading like an epidemic. It is affecting Western Greys, Eastern Greys and there are even some reported cases of Red kangaroos being affected. Some roos have adjusted.