What do grey kangaroos look like?

Giant kangaroos, which died out thousands of years ago, were about twice the size of today's Red kangaroo, and were believed to have similar coloured fur. Instead of simple forepaws, they had strong forelimbs with two extra-long "fingers" with large claws, and each of their hind feet had a single large toe similar to a horse's hoof. It had a short face, rather than the long nose of today's kangaroos.