Recently discovered in a cave in the Philippines, an unknown species of ancient humans contradicts the theory of popular evolution. It seems that homo sapiens was not the only human species that survived a few thousand years ago, these smaller, tree-climbing species (also known as homo luzonensis) date back 50-67,000 years. However, much remains a mystery about these people: how did they end up in Luzon, an island off the coast of the Philippines? Did the homo sapiens of the west of adventure have any role in its extinction? Read more in The Guardian.