New species may shake mankind's family tree

The determination of a new species and possibly one of our ancestors is raising questions about existing theories of evolution and the nature of the human tree.

An international research team determined that seven teeth and six bones found in limestone caves in the Philippines belonged to two adults and one child of a new ancient species.

The newly discovered Homo luzonensis species has been named after Luzon, the largest and most populous island of the Philippines, where the fossils were discovered in 2007, 2011 and 2015. According to a paper published in the journal Nature, the Homo luzonensis fossils are estimated to be around 67,000 years old.