alieujarju.bsky.social
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- 20 Ara 2024, 12:49
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The SK 15 mandible from Swartkrans (~1.4 Ma) was reexamined using X-ray microtomography and morphometric analyses, suggesting it fits within Paranthropus rather than Homo. The specimen has been tentatively attributed to Paranthropus capensis. - Zanolli et al.:
Show PostVarious pathogen inactivation treatments were tested on bovine cortical bone for effects on stiffness and anisotropy. Thermal and irradiation methods significantly reduced stiffness. Formalin and ethanol best preserved mechanical properties but were less effective sterilizers. - Polvadore et al.:
Show PostThe "Ushikawa man", initially identified as human humerus and femoral head from the Late Pleistocene in Japan, were re-examined and determined to be bear bones. This reevaluation highlights the importance of comparative morphology in fossil identification:
Show PostAustralopithecus at Sterkfontein had primarily plant-based diets similar to herbivores, with no regular consumption of mammalian meat, shown by enamel-bound nitrogen and carbon isotopes. The authors suggest this indicates meat intake did not drive brain expansion in early hominins. - Lüdecke et al.:
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