Results 171 to 180 of about 94,194 (314)

Ground squirrel coprolites preserve complex archives of ancient environmental DNA over 700,000 years. [PDF]

Nat Commun
Murchie TJ, Cocker SL, Baleka S, Vogel NA, Natola L, Karpinski E, Tirlea D, Barrera MA, Grant DM, Morien E, Long GS, Rutledge LY, Zazula GD, Jensen BJ, Froese DG, Poinar HN.   +15 more
europepmc   +1 more source

Genotyping Contemporary Captive and Historical Wild Western Lowland Gorillas Indicates Captive Breeding Is Maintaining Genetic Diversity in a Critically Endangered Primate

Animal Conservation, EarlyView.
Captive populations of threatened species risk losing genetic diversity over time. We evaluated the genetic status of contemporary captive western lowland gorillas (Gorilla gorilla gorilla) at Howletts and Port Lympne and compared this with specimens from a historical wild population.
Jaimie Morris, Tony King, John Hills, Simon C. Harvey, Jane Hopper, Rodrigo Vega   +5 more
wiley   +1 more source

Specialised and persistent raw material procurement by humans in the Middle Pleistocene. [PDF]

Nat Commun
Will M, Sommer C, Möller GHD, Botha GA, Blessing MA, Msimanga L, Mazel A, Val A, Venditti F, Riedesel S.   +9 more
europepmc   +1 more source

Fault slip-rate variations during crustal-scale strain localisation, central Italy

, 2002
Rates of plate motion are generally uniform over 10–102 Myrs timescales. Faults between tectonic plates might, therefore, be expected to show temporally-uniform slip-rates if the same number of faults remain active. For an extending region of the Eurasia-
Morewood, NC, Michetti, AM, Roberts, GP, Cowie, P, Papanikolaou, I   +4 more
core  

It Takes Two to Tango: A Pluralist Account for Building Comprehensive Explanations in Human Evolution

American Anthropologist, EarlyView.
ABSTRACT The evolutionary study of human dispersal is a key topic in biological anthropology. However, recent research has revealed inconsistencies between molecular and anatomical data across different timescales and geographic regions. Despite increased interdisciplinary dialogue, these discordances are rarely analyzed in depth or interpreted for ...
Lumila Paula Menéndez, Sophie Veigl
wiley   +1 more source

Cave morphology and human-mediated sediment deposition: Late Pleistocene to Holocene evolution of the cave floor at Panga ya Saidi, coastal Kenya. [PDF]

PLoS One
Miller JM, Shipton C, Kourampas N, Parés JM, Vonhof H, Javad Shoaee M, Cueva-Temprana A, Harding M, Crowther A, Jurkenas D, Mutoro D, Cerassoni JN, Fernandes R, Maroma C, Ndiema E, Boivin N, Petraglia MD.   +16 more
europepmc   +1 more source

Lithic analysis in African archaeology: Advances and key themes

Archaeometry, EarlyView.
Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski, Amanuel Beyin, Justin Pargeter   +2 more
wiley   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

Archaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather, Matthias Leopold, Kaitlin Sullivan, Kane Ditchfield, Tom Horrocks, Luke Gliganic, Emma Beckett, Diana Patalwala, Emielda Yusiharni, Michael Smirk, William Hiscock, Jo McDonald   +11 more
wiley   +1 more source

Investigating relationships among strontium, barium, and seasonality in wild baboons

Archaeometry, EarlyView.
Abstract Geochemical profiles of Australopithecus africanus and baboon teeth show fluctuating trace elements, possibly reflecting seasonal diets. Here we use laser ablation–inductively coupled plasma–mass spectrometric measurements of calcium‐normalized strontium and barium ratios (Sr/Ca and Ba/Ca) and ion microprobe analyses of oxygen isotopes (δ18O ...
Maya Bharatiya, Christine Austin, Manish Arora, Janaína N. Ávila, Esme K. Beamish, Wendy Dirks, Daniel R. Green, Nicole D. Leonard, W. Scott McGraw, Larissa Swedell, Ian S. Williams, Jian‐xin Zhao, Tanya M. Smith   +12 more
wiley   +1 more source

The Natural History of Periodontitis in Man: The Past, the Present, the Future. [PDF]

J Periodontal Res
van der Velden U, Danser MM.
europepmc   +1 more source