Pieces of Homo naledi story continue to puzzle

Age, place on hominid family tree, how fossils ended up in hard-to-reach cave remain unknown

Dinaledi Chamber

DEEP EVOLUTION  Homo naledi fossils were found in South Africa’s Dinaledi Chamber, outlined here. Researchers debate whether this species dropped its dead through a shaft into the underground space, creating the array of bones shown on the chamber floor.

P.H.G.M. Dirks et al/eLife 2015 (CC BY 4.0)

ATLANTAHomo naledi, a rock star among fossil species in the human genus, has made an encore.