What does it mean that much of the plant and animal life in Oceania is endemic to the region, such as the wallaby to Australia?

Question

Quizplus · Accepted Answer

Endemic species are those that are found in a specific geographical area and nowhere else in the world. The wallaby in Australia is an example of an animal that is endemic to the Oceania region, meaning it naturally exists there and is not found in the wild anywhere else on Earth.

What Does It Mean That Much of the Plant and Animal