Results 71 to 80 of about 2,662,321 (186)

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

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

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

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

Sacral Orientation in Hominin Evolution

Advances in Anthropology, 2013
Sagittal sacral orientation within the pelvic girdle of humans is a key component of posture and obstetrics. On the one hand, sacral orientation has direct influence on the lumbar curvature; while on the other hand, it has an impact on the dorsoventral dimension of the birth canal. In this study, we aim to explore the evolution of sacral orientation in
Ella Been, Hayuta Pessah, Smadar Peleg, Patricia A. Kramer   +3 more
openaire   +2 more sources

Stable isotope analysis of freshwater gastropod carbonates from Swanscombe: Insights into climate stability and seasonality during MIS 11c

Journal of Quaternary Science, EarlyView.
ABSTRACT Stable isotope analyses of freshwater mollusc carbonate can record environmental conditions at the time of mineralisation, yet this technique remains underused in British Middle Pleistocene fluvial sequences, despite the abundance of fossil shell material in these deposits.
Jennifer E. Sherriff, Ian Candy, Adrian P. Palmer, Danielle C. Schreve, Tom S. White   +4 more
wiley   +1 more source

Super volcano eruptions and their impact on hominin evolution

, 2015
Discussions relating to super-volcanic eruptions (Volcanic Explosivity Index 7-8+) and their impacts on hominin evolution tend to focus on eruptions that occurred within the last 100 kya and specifically relate to the impact on modern humans or ...
Firth, C., Cole, J.
core  

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, Bates, C. Richard; id_orcid   +67 more
core   +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

The evolution of hominin bipedalism in two steps

Nature
Bipedalism is a human-defining trait1-3. It is made possible by the familiar, bowl-shaped pelvis, whose short, wide iliac blades curve along the sides of the body to stabilize walking and support internal organs and a large-brained, broad-shouldered baby4-6. The ilium changes compared with living primates are an evolutionary novelty7. However, how this
Gayani Senevirathne, Serena C. Fernandopulle, Daniel Richard, Stephanie L. Baumgart, Anika Liv Christensen, Matteo Fabbri, Jakob Höppner, Harald Jüppner, Peishu Li, Vivien Bothe, Nadia Fröbisch, Ian Simcock, Owen J. Arthurs, Alistair Calder, Naomi Freilich, Niamh C. Nowlan, Ian A. Glass, April Craft, Terence D. Capellini   +18 more
openaire   +2 more sources