The discovery of remains of at least three individuals from this species, named Homo luzonensis, in Callao Cave on the northern part of the island of Luzon marked the second time in the 21st century that a bygone member of the human family has been found on southeast Asian islands.
The researchers were unable to extract DNA but did determine that one of the individuals lived 67,000 years ago and the other 50,000 years ago.
In 2003, fossils of another island-dwelling species – Homo floresiensis, dubbed the “Hobbit” due to its diminutive size – were unearthed in a cave on the Indonesian island of Flores, some 1,800 miles (3,000 km) from the Luzon site. There is no indication the two species interacted or were closely related.
Homo luzonensis was a contemporary not only of the Hobbit but of our own species, Homo sapiens, which emerged in Africa roughly 300,000 years ago.
The scientists said they could not rule out the possibility that the arrival of our species in the region contributed to the demise of Homo luzonensis. The Hobbit also disappeared about 50,000 years ago at the same time Homo sapiens was spreading through the region.
The Luzon and Flores discoveries demonstrate that the story of human evolution is more complicated than previously understood, with Asia offering up surprises, potentially with more to come, the researchers said.