The origin of humans has always been an interesting topic for paleoanthropologists so a group of scientists lead by Lee Berger have found a new human species named Homo Naledi in Africa. They claim that these species were humans' long lost ancestors and their remains were buried under a cave and were apparently away from the reach of any kind of creatures because they have been hidden since so many years.
The appendages and chest cavities resemble apes.
It is apparently the most phenomenal discovery ever made in the caves of West Africa.
Although, the dates of their period haven't been discovered yet but further studies are being conducted.