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Australopithecus sediba: A New Species of Homo-Like Australopith from South Africa
Combined craniodental and postcranial evidence demonstrates that this new species of Australopithecus shares more derived features with early Homo than any other australopith species and thus might help reveal the ancestor of that genus.
Postcranial robusticity in Homo. II: Humeral bilateral asymmetry and bone plasticity.
Skeletal samples of normal modern Euroamericans, prehistoric and early historic Amerindians, and prehistoric Japanese show moderate median asymmetry in diaphyseal cross-sectional areas and polar second moments of area, whereas the tennis-player sample, with pronounced unilateral physical activity, exhibits median asymmetries of 28-57% in the same parameters.
Makers of the early Aurignacian of Europe.
The overall picture is one of an extended period of cultural contact, involving some degree of genetic exchange, between Neandertals and early modern Europeans, and perhaps for 8,000-10,000 years or longer.
Homo naledi, a new species of the genus Homo from the Dinaledi Chamber, South Africa
Homo naledi is a previously-unknown species of extinct hominin discovered within the Dinaledi Chamber of the Rising Star cave system, Cradle of Humankind, South Africa. This species is characterized…
The Lower Limb and Mechanics of Walking in Australopithecus sediba
The discovery of a relatively complete Australopithecus sediba adult female skeleton permits a detailed locomotor analysis in which joint systems can be integrated to form a comprehensive picture of…
Experimental Evidence Concerning Spear Use in Neandertals and Early Modern Humans
Abstract Can a bimanual activity such as thrusting a spear during hunting produce bilateral asymmetries in the strength of the upper limbs? This question is important to arguments about the predatory…
Australopithecus sediba Hand Demonstrates Mosaic Evolution of Locomotor and Manipulative Abilities
The hand of Australopithecus sediba, a rare example in the hominid fossil record, shows short fingers and a long thumb consistent with improved precision gripping while retaining strength for climbing, suggesting at least two distinct hand morphotypes around the Plio-Pleistocene transition.
The Foot and Ankle of Australopithecus sediba
- B. Zipfel, J. DeSilva, R. Kidd, K. Carlson, S. Churchill, L. Berger
- Biology, MedicineScience
- 9 September 2011
Observations suggest, if present models of foot function are correct, that Au.
Bioenergetic perspectives on Neanderthal thermoregulatory and activity budgets
- S. Churchill
Estimating Neanderthal SA can be used to model Neanderthal daily energy budgets, and form the basis of evaluating the costs/benefits of hypothesized morphological and behavioral benefits of cold-adapted morphology in Neanderthals.
Morphological variation and airflow dynamics in the human nose
- S. Churchill, Laura L. Shackelford, J. Georgi, Michael T. Black
- Geology, MedicineAmerican journal of human biology : the official…
- 1 November 2004
The relationships between aspects of nasal morphology and turbulent air flow were evaluated by examining the flow regimes at varying flow rates, with the expectation that the greater the development of the proposed turbulence‐enhancing features the slower the flow rate at which flow would shift from one regime to another.