Results 71 to 80 of about 2,554,828 (223)

Evolutionary morphology of the haplorhine hamate

The Anatomical Record, EarlyView.
Abstract Primates adopt a variety of hand postures during an impressive diversity of locomotor and manipulative behaviors. Morphological research has found that elements of the hand skeleton, such as the hamate, hold key information for inferring hand use and locomotor kinematics in extinct species.
Laura E. Hunter, Matthew W. Tocheri, Caley M. Orr, Biren A. Patel, Zeresenay Alemseged   +4 more
wiley   +1 more source

Earliest Porotic Hyperostosis on a 1.5-Million-year-old Hominin, olduvai gorge, Tanzania. [PDF]

, 2012
Meat-eating was an important factor affecting early hominin brain expansion, social organization and geographic movement. Stone tool butchery marks on ungulate fossils in several African archaeological assemblages demonstrate a significant level of ...
Uribelarrea David, Domínguez-Rodrigo, Manuel, María del Sol Martínez-Ávila, Musiba, C., Musiba Charles, Pickering, T.R., Pickering, Travis Rayne, Agness, Gidna, Gail M Ashley, Musiba, Charles, Ashley, Gail M., Barboni Doris, Audax Mabulla, Bunn, Henry T., Pickering Travis Rayne, Mabulla, Audax, Gonzalo Trancho, David Uribelarrea, Diez-Martín, Fernando, Doris Barboni, Travis Rayne Pickering, Carmen Arriaza, Ashley, G.M., Domínguez Rodrigo, Manuel, Gidna, Agness, Enrique Baquedano, Trancho Gayo, Gonzalo, Barboni, Doris, Uribelarrea, David, Bunn, Henry T, Arriaza, Carmen, Santonja Manuel, Bunn Henry T., Barba, Rebeca, Barba Rebeca, Arriaza Carmen, Baquedano Enrique, Barboni, D., Gidna Agness, Santonja, Manuel, Díez Martín, Fernando, Yravedra, José, José Yravedra, Yravedra José, Trancho Gonzalo, Henry T Bunn, Ashley, Gail M, Manuel Santonja, Martínez-Ávila María del Sol, Uribelarrea Del Val, David, Fernando Diez-Martín, Agness Gidna, Ashley Gail M., Manuel Domínguez-Rodrigo, Trancho, Gonzalo, Baquedano, Enrique, Domínguez-Rodrigo Manuel, Diez-Martín Fernando, Yravedra Sainz De Los Terreros, José, Arriaza, María del Carmen, Mabulla Audax, Del Sol Martinez-Avila, Maria, Charles Musiba, Rebeca Barba, Martínez-Ávila, María del Sol   +64 more
core   +2 more sources

Human evolution and the obstetrical dilemma: The pelvic floor hypothesis

The Anatomical Record, EarlyView.
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley   +1 more source

Dental metrics of Sahelanthropus tchadensis: A comparative analysis with apes and Plio-Pleistocene hominins

South African Journal of Science
Since discovery and description of the species, Sahelanthropus tchadensis has been at the centre of a great discussion around its classification as a hominin – the first of our lineage – or an ape.
Walter Neves, Leticia Valota, Clovis Monteiro   +2 more
doaj   +1 more source

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

The 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, Olalla Prado‐Nóvoa, Kevin P. Davy, José Miguel Carretero, Rebeca García‐González   +4 more
wiley   +1 more source

Hominin interbreeding and the evolution of human variation [PDF]

Journal of Biological Research-Thessaloniki, 2016
Mitochondrial Eve confirms the "out of Africa" theory, but the evidence also supports interbreeding between Homo sapiens and other hominins: Neanderthals, Denisovans, and Homo heidelbergensis. This article explains how interbreeding between early H. sapiens and archaic hominins occurred.
openaire   +2 more sources

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

The 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, Jonathan C. K. Wells   +1 more
wiley   +1 more source

Hominin footprints from Early Pleistocene deposits at Happisburgh, UK [PDF]

, 2014
The research was funded by the Calleva Foundation as part of the Pathways to Ancient Britain Project. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Investigations at ...
Simon A. Parfitt, Hoare, Peter, Chris Stringer (67811), Williams Craig, Duffy, Sarah M., Simon A Parfitt, Lewis, M, Duffy, Sarah M, Peter Hoare, Peter Hoare (582679), De Groote, I, Parfitt, SA, Williams, Craig, Bates, M, Sarah M Duffy, Bates, R, Parfitt, Simon A, Isabelle De Groote, Martin Bates, Sarah M. Duffy (582676), Peglar, S, Duffy, SM, Ashton, N, Bates, Martin, Richard Bates (582678), Lewis, SG, Martin Bates (582677), Simon G Lewis, Chris Stringer, Lewis, Simon G, Parfitt, Simon A., Peglar, Sylvia, Isabelle De Groote (582675), Hoare Peter, Bates Richard, Williams, C, Sarah M. Duffy, Simon G. Lewis (582674), Simon G. Lewis, Stringer, C, Ashton, Nick, Mark Lewis, De Groote Isabelle, Duffy Sarah M., Hoare, P, Sylvia Peglar (582680), Craig Williams (582681), Ashton Nick, Sylvia Peglar, Stringer Chris, Stringer, Chris, Nick Ashton, Simon A. Parfitt (229984), Bates Martin, Bates, Richard, Bates, C. Richard, De Groote, Isabelle, Lewis Mark, Richard Bates, Parfitt Simon A., Nick Ashton (388306), Mark Lewis (393467), Lewis, Mark, Lewis, Simon G., Lewis Simon G., Peglar Sylvia, Craig Williams   +66 more
core   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

Biological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón, José A. Sánchez‐Zapata, Travis L. DeVault, Wayne M. Getz, Zebensui Morales‐Reyes, Daniel Redondo‐Gómez, Lara Naves‐Alegre, Solange A. Batista‐Nunes, Esther Sebastián‐González, Juan M. Pérez‐García, Kelly A. Waters, Thijs van Overveld, Craig Smith, Nuria Selva, Thomas A. Schlacher, Graeme Ruxton, Jesús Rodríguez, Martina‐M. Quaggiotto, Paula L. Perrig, Norman Owen‐Smith, Thomas M. Newsome, Isabel Navas, Yoshihiro Nakashima, Ana Mateos, Carlos Martínez‐Carrasco, Daniel Martín‐Vega, Berta Martín‐López, Antoni Margalida, Sergio A. Lambertucci, Adam Kane, Kevin Healy, Akane Hashizume, Antonio J. García‐Fernández, José A. Donázar, M. Eric Benbow, James C. Beasley, Philip S. Barton, Kathleen A. Alexander, Eneko Arrondo   +38 more
wiley   +1 more source

Dental enamel hypoplasia and intra‐tooth isotope records as indicators of physiological stress and environmental variability in Early Pleistocene hippopotamids from Melka Kunture (Upper Awash, Ethiopia)

Journal of Quaternary Science, EarlyView.
ABSTRACT Enamel hypoplasia results from temporary disruptions of enamel deposition during tooth development. It is widely used as an indicator of physiological stress in archeological and paleontological contexts; yet, its relationship with environmental conditions during tooth formation remains poorly constrained.
Giuseppe Briatico, Denis Geraads, Rita T. Melis, Margherita Mussi   +3 more
wiley   +1 more source