Deep within South Africa's Rising Star cave system, in a dark passageway barely 6 inches wide, scientists have discovered the fragmented skull of a Homo naledi child they're calling"Leti." How the little skull ended up in such a remote part of the cave is a mystery, though the discoverers suspect it could be evidence of an intentional burial.
That leaves open the possibility that more than 240,000 years ago, human ancestors with orange-size brains deliberately entered a dark, maze-like cave, perhaps through a vertical chute that narrows to 7 inches in places, and placed their dead inside. The new skull — which fits into the palm of a modern human hand — should reveal more about H. naledi's growth and development. While a few jaw fragments from juveniles have been found in the cave, this is the first time researchers have discovered bones from the skull case, or cranium. They also discovered six teeth.
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Sleep Paralysis: Causes, Symptoms & TreatmentNicoletta Lanese is a staff writer for Live Science covering health and medicine, along with an assortment of biology, animal, environment and climate stories. She holds degrees in neuroscience and dance from the University of Florida and a graduate certificate in science communication from the University of California, Santa Cruz. Her work has appeared in The Scientist Magazine, Science News, The San Jose Mercury News and Mongabay, among other outlets. But how else am I supposed to see the sleep demon
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