Kangaroos are some of the most iconic animals in Australia, and they're best known for their large size and their hopping gait. But not all kangaroos are the same. There are actually many different species of kangaroos, and they come in all shapes and sizes. The smallest kangaroo is the quokka, which is about the size of a large cat. And now, scientists have discovered a new species of fossil kangaroo that was even smaller than the quokka.

The newly discovered species, called *Notamacropus tedfordi*, lived in Australia about 10 million years ago. It was about the size of a small wallaby, and it weighed only about 20 pounds. But what's really interesting about *N. tedfordi* is its teeth. The teeth of *N. tedfordi* are different from the teeth of any other kangaroo that has ever been discovered. They're more like the teeth of a koala, which is a tree-dwelling marsupial that eats leaves.

This suggests that *N. tedfordi* was also a tree-dwelling marsupial, and that it ate leaves. This is a surprising discovery, because kangaroos are typically thought of as ground-dwelling animals that eat grass. But it seems that kangaroos have evolved to eat leaves multiple times in their evolutionary history.

*N. tedfordi* is the fourth known species of kangaroo that has evolved to eat leaves. The other three species are all extinct. This suggests that kangaroos have been evolving to eat leaves for millions of years, and that this is a successful evolutionary strategy.

The discovery of *N. tedfordi* is important because it sheds light on the evolution of kangaroos. It also shows that kangaroos are more diverse than we thought. There are still many unanswered questions about kangaroos, but the discovery of *N. tedfordi* is a step in the right direction.