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1.4-million-year-old jawbone reveals new human relative, rewriting evolutionary history A 1.4-million-year-old fossilized jawbone found in South Africa belongs to a newly discovered species of Paranthropus, an extinct genus of human relatives, according to a recent study published in the Journal of Human Evolution. The findings of this study suggest that at least two species of Paranthropus coexisted in southern Africa during that period. The fossilized jaw, designated SK 15, was discovered in 1949 in the Swartkrans cave system, famous for the richness of hominin fossils it offers. Initially, researchers thought the specimen belonged to Telanthropus capensis, a species that was later dismissed. However, recent advancements in technology have allowed researchers to take a fresh look at SK 15 with high-resolution X-ray scans and virtual 3D modeling...