Results 71 to 80 of about 2,719,722 (227)

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

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

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

Hominin evolution was caused by introgression from Gorilla [PDF]

Natural Science, 2018
ABSTRACT: The discovery of Paranthropus deyiremeda in 3.3–3.5 million year old fossil sites in Afar, together with 30% of the gorilla genome showing lineage sorting between humans and chimpanzees, and a NUMT (“nuclear mitochondrial DNA segment”) on chromosome 5 that is shared by both gorillas ...
openaire   +4 more sources

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

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

Let's Talk About Bone Cylinders. Taphonomy of Carnivores and Humans

International Journal of Osteoarchaeology, EarlyView.
ABSTRACTBone cylinders are a distinctive structure predominantly produced by durophagous carnivoran species during the consumption of long bones, in which the diaphyseal canal remains intact while both epiphyses are removed or consumed. This study evaluates the significance of this morphology, traditionally attributed to extant and extinct hyena ...
Darío Herranz‐Rodrigo
wiley   +1 more source

And then there was us Et puis nous sommes apparus

Journal of the Royal Anthropological Institute, EarlyView.
In 1987, the academic conference ‘Origins and Dispersals of Modern Humans: Behavioural and Biological Perspectives’ was held in Cambridge, UK. Subsequently referred to as the ‘Human Revolution’ conference, this meeting brought together the most prominent academics working in the field of human origins, including archaeologists and palaeoanthropologists,
Emma E. Bird, Julia Galway‐Witham, Chris Stringer   +2 more
wiley   +1 more source