Who first buried the dead?
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 most shocking aspect of Homo naledi, though, concerned not the remains themselves but rather their resting place.
The chamber where the bones were found is far from the cave entrance, accessible only through a narrow, difficult passage that is completely shrouded in darkness. Scientists believe the chamber has long been difficult to access, requiring a journey of vertical climbing, crawling, and tight squeezing through spaces only 20 centimeters across. It would be an impossible place to live, and a highly unlikely location for many individuals to have ended up by accident. Those details pushed the research team toward a shocking hypothesis: despite its puny brain, Homo naledi purposefully interred its dead. The cave chamber was a graveyard, they concluded.
For anthropologists, mortuary rituals carry an outsize importance in tracing the emergence of human uniqueness—especially the capacity to think symbolically. Symbolic thought gives us the ability to transcend the present, remember the past, and visualize the future. It allows us to imagine, to create, and to alter our environment in ways that have significant consequences for the planet. Use of language is the quintessential embodiment of such mental abstractions, but studying its history is difficult because language doesn’t fossilize. Burials do.
Burials provide a hard, material record of a behavior that is deeply spiritual and meaningful. It allows scientists to trace the emergence of beliefs, values, and other complex ideas that appear to be uniquely human. Homo sapiens is unquestionably unlike any other species alive today. Pinpointing what separates us from the rest of nature is surprisingly difficult, however. [Continue reading…]
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