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Evolution

Pieces of the Human Evolutionary Puzzle: Who Was Australopithecus sediba?

Few things remain as mysterious—or controversial—as our own history as a species. However, a series of papers released in Science may add another piece to the puzzle: Four papers draw back the curtain on Australopithecus sediba, announced earlier this year, detailing morphological features of the hand, foot, pelvis, and skull that may establish this species within the ancestral lineage of modern humans.In a subterranean cave at Malapa, South Africa, approximately 25 miles (40km) from Johannesburg, the remains of numerous hominins identified as Australopithecus sediba have lain between layers of flowstone—a type of rock that forms in caves, similar in composition to stalagmites and stalactites, except as the name implies, this rock forms in a layer that “flows” across the surface...

September 9, 2011 — Krystal D'Costa
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