Results 51 to 60 of about 2,686 (159)

Pelvic breadth and juvenile locomotor energetics: Implications for the obstetrical dilemma hypothesis across human growth in past and present humans

open access: yesThe Anatomical Record, EarlyView.
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla   +4 more
wiley   +1 more source

Early Hominin Movement Patterns at Laetoli, Northern Tanzania

open access: yesPaleoAnthropology
The site of Laetoli in northern Tanzania is famous for its preservation of 3.66-million-year-old footprint trails, among which are several belonging to an upright walking hominin (Day and Wickens, 1980; Leakey and Hay, 1979; Masao et al., 2016; McNutt et
Catherine K. Miller   +4 more
doaj   +1 more source

The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra   +1 more
wiley   +1 more source

Spondylolysis and spinal adaptations for bipedalism [PDF]

open access: yes, 2020
Background and objectives The study reported here focused on the aetiology of spondylolysis, a vertebral pathology usually caused by a fatigue fracture.
Collard, Mark   +2 more
core   +1 more source

The behavioural ecology of hominin locomotion: what can we learn from landscapes of fear and primate terrestriality?

open access: yesFrontiers in Ecology and Evolution
A defining feature of the hominin clade is bipedality, often parcelled together with terrestriality. However, there is increasing evidence of locomotor diversity, both within the hominin clade and amongst the Miocene apes that came before them.
Philippa Hammond   +6 more
doaj   +1 more source

Delegation to automaticity: the driving force for cognitive evolution?

open access: yesFrontiers in Neuroscience, 2014
The ability to delegate control over repetitive tasks from higher to lower neural centres may be a fundamental innovation in human cognition. Plausibly, the massive neurocomputational challenges associated with the mastery of balance during the evolution
James eShine, Richard eShine
doaj   +1 more source

Inferring Brown Bear Hair Snare Interactions by Automatically Detecting Bipedalism on Camera Trap Images Using Pose Estimation and a Multilayer Perceptron

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study proposes an automated method to infer brown bear hair snare interactions by detecting bipedal behavior in camera‐trap images using a pose estimation model and a multilayer perceptron (MLP). A YOLO‐based model, fine‐tuned from humans and dogs to a custom dataset, achieved high performance (≈93% keypoint precision and ≈96% classification ...
Arnau Campanera‐Moliné   +8 more
wiley   +1 more source

Origin of Human Bipedalism As an Adaptation for Locomotion on Flexible Branches

open access: yes, 2007
Human bipedalism is commonly thought to have evolved from a quadrupedal terrestrial precursor, yet some recent paleontological evidence suggests that adaptations for bipedalism arose in an arboreal context.
Holder, Roger   +2 more
core   +1 more source

Morphological and evolutionary insights into the keystone element of the human foot’s medial longitudinal arch

open access: yesCommunications Biology, 2023
The evolution of the medial longitudinal arch (MLA) is one of the most impactful adaptations in the hominin foot that emerged with bipedalism. When and how it evolved in the human lineage is still unresolved.
Rita Sorrentino   +25 more
doaj   +1 more source

The evolution of bipedalism in australopithecines [PDF]

open access: yes, 2012
U ovome seminaru bavim se evolucijom bipedalnog hoda, anatomskim promjenama koje su prethodile njegovom razvoju kao i fosilnim dokazima koji potvrđuju bipedalizam kod australopitecina.
Čolić, Ivan
core  

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