Is a kangaroo a mammal and endangered?

A kangaroo is a mammal, but not all species are endagered. There are over 60 species of kangaroo, however, and many of the lesser-known species are endangered, especially those in the wallaby family. Rock-wallabies seem to be most prone to endangerment. But the larger creatures commonly recognised as kangaroos, such as Red kangaroos and Grey kangaroos, remain common and prolific.