Who first buried the dead?
Paige Madison writes: A mysterious cache of bones, recovered from a deep chamber in a South African cave, is challenging long-held beliefs about how a group of bipedal apes developed into the abstract-thinking creatures that we call “human.” The fossils were discovered in 2013 and were quickly recognized as the remains of a new species unlike anything seen before. Named Homo naledi, it has an unexpected mix of modern features and primitive ones, including a fairly small brain. Arguably the…