Results 61 to 70 of about 3,830 (237)
Hominin musical sound production: palaeoecological contexts and self domestication
Anthropological ReviewIn this article we seek to integrate theories of music origins and dance with hominin fossil anatomy and the paleoecological contexts of hominin evolution.
Gary Clark +4 more
doaj +1 more source
The fossil record stays silent: Confusions and conundrums for hominin pelvis evolution
The Anatomical Record, EarlyView.Abstract The evolution of the hominin pelvis is commonly modeled as a series of stages driven largely by the requirements of bipedal locomotion, reproduction, thermoregulation, and pelvic floor muscular support. These patterns are complicated by variation in canal dimensions in relationship with different changes in overall pelvic breadths. To quantify
Helen K. Kurki, Cara M. Wall‐Scheffler
wiley +1 more source
The pelvis doesn't walk by itself: Wider pelves reduce the cost of walking over unstable surfaces
The Anatomical Record, EarlyView.Abstract Walking over variable and/or unstable terrain is a key aspect of daily life and was crucial to the evolution of bipedalism. The ability to find gait solutions that maintained stability over uneven terrain for the least increase in metabolic cost was likely a hallmark of locomotor effectiveness in early humans, in particular acting as an ...
Cara Wall‐Scheffler +2 more
wiley +1 more source
Bipedality in chimpanzee (Pan troglodytes) and bonobo (Pan paniscus):Testing hypotheses on the evolution of bipedalism [PDF]
, 2002 A host of ecological, anatomical, and physiological selective pressures are hypothesized to have played a role in the evolution of hominid bipedalism. A referential model, based on the chimpanzee (Pan troglodytes) and bonobo (Pan paniscus), was used to ...
McGrew, W. C., Videan, Elaine N.
core +1 more source
Zygon, 2008 In this response to essays by Barbara J. King, Gregory R. Peterson, Wesley J. Wildman, and Nancy R. Howell, I present arguments to counter some of the exciting and challenging questions from my colleagues.
doaj +2 more sources
Dynamic finite-element simulations reveal early origin of complex human birth pattern
Communications Biology, 2022 Using finite element models of australopithecine pelvis reconstructions the secondary altricial nature of early hominin newborns is revealed, indicating that the need for cooperative breeding evolved secondary to bipedalism and thus prior to the ...
Pierre Frémondière +5 more
doaj +1 more source
Humans are not unique: difficult birth is common in placental mammals
Biological Reviews, EarlyView.ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley +1 more source
Remote 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
The evolution of bipedalism in australopithecines [PDF]
, 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
Resolving Head Rotation for Human Bipedalism [PDF]
, 2006 SummaryAlignment of the body to the gravitational vertical is considered to be the key to human bipedalism. However, changes to the semicircular canals during human evolution [1–3] suggest that the sense of head rotation that they provide is important ...
Day, Brian L. +3 more
core +1 more source