Can sombody give me a fact that I don't know about Kangaroos?

Question

I'm doing a research on them for may research paper, it has to be something I don't know about these majestic creatures.

Answer 1

Their kids are called Joey's.  And they have been shot down in herds like the American buffalo because they can be such pests.

Answer 2

And it uses it's tail for balance. Without it death in the wild is eminent .

Answer 3

The kangaroo is the only large animal that uses hopping as a form of movement. In fact the kangaroo hops so efficiently that it can easily hop at speeds of around 25mph for distances up to  2km and over short distances can hit speeds as high as 40-45mph.

Despite the kangaroo having such a fast and energy efficient hopping technique it unfortunately cannot walk in the conventional sense. Rather it uses its tail and fore limbs to help it pivot and almost crawl if it needs only move a few steps.