Which island is the third-largest island in the world?

Australia, whether you call it a continent or not is still an island.

Every one knows Australia is an island (and a continent )

Orangutans live only on the islands of Borneo and Sumatra. They are critically endangered. Unsustainable logging for agriculture has stripped the land of trees. Orangs are a canopy-dwelling species and they need forests to survive. Orangutan babies are actually being trafficked for the exotic pet trade. The World Wildlife Fund keeps guards on them as much as possible. People did not do this to wild animals fifty years ago. Selfishness and greed have taken over the whole world.

I've not heard of this island😥😥