Results 31 to 40 of about 3,830 (237)

Human, almost human: how many human species are there?

open access: yesBulletins et Mémoires de la Société d’Anthropologie de Paris, 2022
The debate on the question "How many human species are there?" may never be resolved. Leaving aside the theological and political aspects of the question, this paper analyses three dimensions of the problem – metaphysical, biological and technical ...
Thierry Hoquet
doaj   +1 more source

How bipedalism shapes humans' actions with hand tools. [PDF]

open access: yesPhilos Trans R Soc Lond B Biol Sci
The task for an embodied cognitive understanding of humans’ actions with tools is to elucidate how the human body, as a whole, supports the perception of affordances and dexterous action with objects in relation to other objects.
Fragaszy DM   +2 more
europepmc   +2 more sources

Safe Carrying of Heavy Infants Together With Hair Properties Explain Human Evolution

open access: yesFrontiers in Psychology, 2022
As a physicist, my scientific career was interrupted by maternity, and afterward retaken, with a parallel independent personal perspective on human evolution. My previous published contributions are reanalyzed as Hypothesis and Theory.
Lia Queiroz do Amaral
doaj   +1 more source

Variability and the form–function framework in evolutionary biomechanics and human locomotion

open access: yesEvolutionary Human Sciences, 2022
The form–function conceptual framework, which assumes a strong relationship between the structure of a particular trait and its function, has been crucial for understanding morphological variation and locomotion among extant and fossil species across ...
Alison A. Murray
doaj   +1 more source

New fossils of Australopithecus sediba reveal a nearly complete lower back

open access: yeseLife, 2021
Adaptations of the lower back to bipedalism are frequently discussed but infrequently demonstrated in early fossil hominins. Newly discovered lumbar vertebrae contribute to a near-complete lower back of Malapa Hominin 2 (MH2), offering additional ...
Scott A Williams   +16 more
doaj   +1 more source

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

open access: yesPLoS 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   +4 more
doaj   +1 more source

Predicting the metabolic energy costs of bipedalism using evolutionary robotics [PDF]

open access: yes, 2003
To understand the evolution of bipedalism among the homnoids in an ecological context we need to be able to estimate theenerrgetic cost of locomotion in fossil forms.
Sellers, W. I.; id_orcid   +8 more
core   +1 more source

Etude de cas : la bipédie des chimpanzés de la communauté de Sebitoli, Ouganda

open access: yesRevue de Primatologie, 2022
To better understand the selective pressures associated with the emergence of bipedal behaviours in the human lineage, the study of bipedal behaviours and their context in modern chimpanzees (Pan troglodytes) provides some basis for comparison ...
Lise Pernel   +5 more
doaj   +1 more source

Human calcaneal variation relative to subsistence strategy, activity level, and footwear

open access: yesFrontiers in Earth Science, 2023
Lower limb cortical and trabecular bone varies with human behavior, leading to suggestions that activity level decreases have contributed to a more gracile skeleton.
Christine M. Harper
doaj   +1 more source

Quantitative biomechanical assessment of locomotor capabilities of the stem archosaur Euparkeria capensis

open access: yesRoyal Society Open Science, 2023
Birds and crocodylians are the only remaining members of Archosauria (ruling reptiles) and they exhibit major differences in posture and gait, which are polar opposites in terms of locomotor strategies.
Oliver E. Demuth   +2 more
doaj   +1 more source

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