Results 51 to 60 of about 2,662,321 (186)

The petrotympanic canal (Huguier canal): Evolutionary, anatomical, and medical perspectives

The Anatomical Record, EarlyView.
Abstract The petrotympanic canal, traditionally referred to as Civinini's or Huguier's canal, represents an anatomical passage connecting the middle ear and temporomandibular joint (TMJ). Despite its early description, its structural complexity and functional significance have often been underestimated. In this study, we combined historical, anatomical,
Andrea Papini, Nicola Montemurro, Ferdinando Paternostro, Immacolata Belviso, Massimo Galli, Petra Martini, Licia Uccelli, Jacopo Moggi‐Cecchi, Gregorio Oxilia   +8 more
wiley   +1 more source

The Hominin Sites and Paleolakes Drilling Project: High-Resolution Paleoclimate Records from the East African Rift System and Their Implications for Understanding the Environmental Context of Hominin Evolution

PaleoAnthropology, 2017
The possibility of a causal relationship between Earth history processes and hominin evolution in Africa has been the subject of intensive paleoanthropological research for the last 25 years.
Christopher J. Campisano, R. Bernhart Owen, Jon D. Pelletier, Richard Potts, Kaye E. Reed, Robin W. Renaut, James M. Russell, Joellen L. Russell, Frank Schäbitz, Jeffrey R. Stone, Martin H. Trauth, Daniel O. Olago, Anders Noren, Tim K. Lowenstein, Andrew S. Cohen, J. Ramon Arrowsmith, Asfawossen Asrat, Anna K. Behrensmeyer, Erik T. Brown, Alan L. Deino, Daniel M. Deocampo, Craig S. Feibel, John D. Kingston, Henry F. Lamb, and Jonathan G. Wynn   +24 more
doaj  

Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II

The Anatomical Record, EarlyView.
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo, Faysal Bibi, Jean‐Renaud Boisserie, Jackson K. Njau, Ignacio de la Torre   +4 more
wiley   +1 more source

Laetoli footprints preserve earliest direct evidence of human-like bipedal biomechanics.

PLoS ONE, 2010
BackgroundDebates over the evolution of hominin bipedalism, a defining human characteristic, revolve around whether early bipeds walked more like humans, with energetically efficient extended hind limbs, or more like apes with flexed hind limbs.
David A Raichlen, Adam D Gordon, William E H Harcourt-Smith, Adam D Foster, Wm Randall Haas   +4 more
doaj   +1 more source

Dental caries in South African fossil hominins

South African Journal of Science, 2021
Once considered rare in fossil hominins, caries has recently been reported in several hominin species, requiring a new assessment of this condition during human evolution.
Ian Towle, Joel D. Irish, Isabelle De Groote, Christianne Fernée, Carolina Loch   +4 more
doaj   +1 more source

Twin pregnancies and the limits of the energetics of gestation and growth hypothesis

The Anatomical Record, EarlyView.
Abstract The “Energetics of Gestation and Growth” (EGG) hypothesis proposes that human birth timing and the associated secondary altriciality of human newborns is determined by limits in maternal metabolic capacity. According to this model, labor is triggered when the increasing fetal energy requirements exceed the expectant mother's maximum sustained ...
Cédric Cordey, Nicole M. Webb, Martin Haeusler   +2 more
wiley   +1 more source

Interpreting sulci on hominin endocasts: Old hypotheses and new findings

Frontiers in Human Neuroscience, 2014
Paleoneurologists analyze internal casts (endocasts) of fossilized braincases, which provide information about the size, shape and, to a limited degree, sulcal patterns reproduced from impressions left by the surface of the brain.
Dean eFalk, Dean eFalk
doaj   +1 more source

Papio Cranium from the Hominin-Bearing Site of Malapa: Implications for the Evolution of Modern Baboon Cranial Morphology and South African Plio-Pleistocene Biochronology. [PDF]

PLoS ONE, 2015
A new partial cranium (UW 88-886) of the Plio-Pleistocene baboon Papio angusticeps from Malapa is identified, described and discussed. UW 88-886 represents the only non-hominin primate yet recovered from Malapa and is important both in the context of ...
Christopher C Gilbert, Christine M Steininger, Christine M Steininger, Job M Kibii, Lee R Berger   +4 more
doaj   +1 more source

Bringing trees back into the human evolutionary story: recent evidence from extant great apes

Communicative & Integrative Biology, 2023
Hypotheses have historically linked the emergence and evolution of defining human characteristics such as bipedal walking to ground-dwelling, envisioning our earliest ancestors as living in treeless savannahs (i.e.
Rhianna C. Drummond-Clarke
doaj   +1 more source

The 9+ month marathon: How pregnancy may have shaped human endurance capacities

The Anatomical Record, EarlyView.
Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley   +1 more source