Results 41 to 50 of about 5,943 (216)

The influence of multiple variables on bipedal context in wild chimpanzees: implications for the evolution of bipedality in hominins

Frontiers in Ecology and Evolution
Investigations into the role of selection in the origin of human bipedalism using ape models have relied heavily on behavioral frequency data. However, analysis of video of wild apes has the advantage of capturing the details of the entirety of each rare,
Lauren Sarringhaus, Lauren Sarringhaus, Ryan Srivastava, Laura MacLatchy, Laura MacLatchy   +4 more
doaj   +1 more source

Recent origin of low trabecular bone density in modern humans [PDF]

, 2014
Humans are unique, compared with our closest living relatives (chimpanzees) and early fossil hominins, in having an enlarged body size and lower limb joint surfaces in combination with a relatively gracile skeleton (i.e., lower bone mass for our body ...
Bernhard Zipfel, Brian G. Richmond, Christopher B. Ruff, Cowgill, Eaton, Habiba Chirchir, Jean-Jacques Hublin, Kristian J. Carlson, Ruff, Ruff, Tracy L. Kivell, Trinkaus   +11 more
core   +1 more source

Different evolutionary pathways underlie the morphology of wrist bones in hominoids [PDF]

, 2013
BACKGROUND The hominoid wrist has been a focus of numerous morphological analyses that aim to better understand long-standing questions about the evolution of human and hominoid hand use.
Barros, Anna P, Kivell, Tracy L., Smaers, Jeroen B   +2 more
core   +2 more sources

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

The Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson, Pierre Frémondière, Kaspar Staub, Philipp Mitteroecker, Barbara Fischer, Martin Haeusler, Nicole M. Webb   +6 more
wiley   +1 more source

Two New Cases of Uner Tan Syndrome: One Man\ud with Transition from Quadrupedalism to Bipedalism;\ud One Man with Consistent Quadrupedalism [PDF]

, 2010
Background: Uner Tan syndrome, first described in\ud 2005, consists of three main symptoms: habitual\ud locomotion on all four extremities, impaired\ud intelligence, and dysarthric or no speech.
Tan, Prof. Dr. Uner
core  

EEG During Pedaling: Evidence for Cortical Control of Locomotor Tasks [PDF]

, 2013
Objective: This study characterized the brain electrical activity during pedaling, a locomotor-like task, in humans. We postulated that phasic brain activity would be associated with active pedaling, consistent with a cortical role in locomotor tasks ...
Gourab, Krishnaj, Jain, Sanket G., Schindler-Ivens, Sheila M., Schmit, Brian D.   +3 more
core   +2 more sources

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 origin of bipedality as the result of a developmental by-product : the case study of the olive baboon (Papio anubis) [PDF]

, 2017
International ...
Abourachid, Adolph, Adolph, Aerts, Altmann, Anvari, Berillon, Berillon, Büschges, Carvalho, Cheyne, Corbetta, Crompton, D'Août, Dietz, Doran, Doran, Druelle, Druelle, Druelle, Druelle, Dunbar, Duysens, Fjortoft, Fleagle, Fleagle, François Druelle, Gilles Berillon, Greeno, Grillner, Grillner, Hof, Hunt, Hunt, Hunt, Hurov, Hägglund, Isler, Kimura, Lacquaniti, Maes, Michel, Nakajima, Orendurff, Patrick, Pearson, Peter Aerts, Polk, Pontzer, Remis, Righetti, Rose, Rose, Sarringhaus, Schoonaert, Shapiro, Thorpe, Wells, White, Witte, Zehr, Zehr, Zehr   +62 more
core   +3 more sources

Born this way: Does variation in perinatal limb bone morphology predict adult locomotor repertoire in primates?

The Anatomical Record, EarlyView.
Abstract Primates show a high degree of locomotor diversity that engenders similar variance in limb bone cross‐sectional geometry and bending strength: leaping primates have stronger hindlimb bones whereas suspensory species have stronger forelimb bones.
Angela M. Mossor, Jeremy Busken, Lorna Benden, Ethan Mardovin, Andrew Bostick, Grégoire Boulinguez‐Ambroise, Timothy D. Smith, Jesse W. Young   +7 more
wiley   +1 more source

Arboreality, terrestriality and bipedalism [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2010
The full publication ofArdipithecus ramidushas particular importance for the origins of hominin bipedality, and strengthens the growing case for an arboreal origin. Palaeontological techniques however inevitably concentrate on details of fragmentary postcranial bones and can benefit from a whole-animal perspective. This can be provided by field studies
Crompton, Robin Huw, Sellers, William I., Thorpe, Susannah K S   +2 more
openaire   +2 more sources