Results 151 to 160 of about 124,137 (361)

What can lithics tell us about hominin technology's ‘primordial soup’? An origin of stone knapping via the emulation of Mother Nature

Archaeometry, EarlyView.
Abstract The use of stone hammers to produce sharp stone flakes—knapping—is thought to represent a significant stage in hominin technological evolution because it facilitated the exploitation of novel resources, including meat obtained from medium‐to‐large‐sized vertebrates. The invention of knapping may have occurred via an additive (i.e., cumulative)
Metin I. Eren, Stephen J. Lycett, Michelle R. Bebber, Alastair Key, Briggs Buchanan, Emma Finestone, Joseph Benson, Rebecca Biermann Gürbüz, Adela Cebeiro, Roman Garba, Anne Grunow, C. Owen Lovejoy, Danielle MacDonald, Erica Maletic, G. Logan Miller, Joseph D. Ortiz, Jonathan Paige, Justin Pargeter, Tomos Proffitt, Mary Ann Raghanti, Teal Riley, Jeffrey I. Rose, David M. Singer, Robert S. Walker   +23 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

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +1 more source

Conservation, evolution, and regulation of splicing during prefrontal cortex development in humans, chimpanzees, and macaques [PDF]

, 2018
Pavel Mazin, Xi Jiang, Ning Fu, Dingding Han, Meng Guo, Mikhail S. Gelfand, Philipp Khaitovich   +6 more
openalex   +1 more source

Homo luzonensis and the role of homoplasy in the morphology of hominin insular species

Cladistics, EarlyView.
Abstract Homo luzonensis lived during the upper Pleistocene in the northern Philippines, east of the Wallace line. The few specimens attributed to this species show a mosaic of plesiomorphies for the genus Homo and apomorphies found in upper Pleistocene Homo species.
Pierre Gousset, Jérémie Bardin, Isabelle Rouget, Armand S. Mijares, Florent Détroit   +4 more
wiley   +1 more source

A new group of hepadnaviruses naturally infecting Orangutans (Pongo pygmaeus) [PDF]

, 1999
A high prevalence (42.6%) of hepatitis B virus (HBV) infection was suspected in 195 formerly captive orangutans due to a large number of serum samples which cross-reacted with human HBV antigens.
Heeney, J.L., Heriyanto,, Swan, R.A., Verschoor, E.J., Warren, K.S.   +4 more
core   +1 more source

Pre-clinical testing of two serologically distinct chimpanzee-origin adenovirus vectors expressing spike of SARS-CoV-2 [PDF]

, 2022
Mikhail Novikov, Mohadeseh Hasanpourghadi, Robert Ambrose, Arezki Chekaoui, Dakota Newman, Wynetta Giles‐Davis, Zhiquan Xiang, Xiang Zhou, Hildegund C.J. Ertl   +8 more
openalex   +1 more source

Using miniaturized laboratory equipment and DNA barcoding to improve conservation genetics training and identify illegally traded species

Conservation Biology, EarlyView.
Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva, Ivo Colmonero‐Costeira, Saidil Lamine Djaló, Tomás Camará, Rui M. Sá, Tania Minhós, Angelika Kiebler, Martin Grethlein, Netta Pikkarainen, Stefan Prost   +9 more
wiley   +1 more source

Primate phylogeny: molecular evidence for a pongid clade excluding humans and a prosimian clade containing tarsiers [PDF]

, 2009
Interpretations of molecular data by the modern evolution theory are often sharply inconsistent with paleontological results. This is to be expected since the theory is only true for microevolution and yet fossil records are mostly about macroevolution.
Shi Huang
core   +1 more source

Environmentally-mediated selection parallels population divergence across a chimpanzee subspecies contact zone [PDF]

Matthew W. Mitchell, Walker Alexander, D. Mitchell, Adam H. Freedman, Janina Dordel, Ryan J. Harrigan, Ahmet Saçan, Fabrice Kentatchime, Bryan S. Featherstone, Ekwoge E. Abwe, Paul R. Sesink Clee, Abwe Enang Abwe, Sabrina Locatelli, Bethan J. Morgan, Bernard Fosso, Roger Fotso, Sarah A. Tishkoff, Evan E. Eichler, Nicola M. Anthony, Thomas B. Smith, Mary Katherine Gonder   +20 more
openalex   +1 more source