A previously unknown species of humans that lived on an island in what is now the Philippines some 50,000 years ago has been discovered.
The species, dubbed Homo luzonensis after the island of Luzon where its remains were found, is not a direct ancestor of modern day humans, but rather a distant ancient relative.
The discovery, published in the journal Nature on Thursday, adds to a growing body of evidence that human evolution is not as linear as was once thought.
It also raises questions, including how the species arrived on the island and who its ancestors were.