Results 1 to 10 of about 1,688,443 (206)

Genomic Insights into the Ancestry and Demographic History of South America. [PDF]

open access: yesPLoS Genetics, 2015
South America has a complex demographic history shaped by multiple migration and admixture events in pre- and post-colonial times. Settled over 14,000 years ago by Native Americans, South America has experienced migrations of European and African ...
Julian R Homburger   +12 more
doaj   +5 more sources

Reconstructing the Deep Population History of Central and South America [PDF]

open access: yesCell, 2018
نبلغ عن الحمض النووي القديم على مستوى الجينوم من 49 فردًا يشكلون أربعة مقاطع زمنية متوازية في بليز والبرازيل وجبال الأنديز الوسطى والمخروط الجنوبي، ويعود تاريخ كل منها إلى ما لا يقل عن 9000 سنة مضت. انتشر سكان الأجداد المشتركون بسرعة من واحد فقط من الفرعين الأولين اللذين ساهما في الأمريكيين الأصليين اليوم.
Cosimo Posth   +71 more
openaire   +9 more sources

Kinematics of the South Atlantic rift [PDF]

open access: yesSolid Earth, 2013
The South Atlantic rift basin evolved as a branch of a large Jurassic–Cretaceous intraplate rift zone between the African and South American plates during the final break-up of western Gondwana. While the relative motions between South America and Africa
C. Heine, J. Zoethout, R. D. Müller
doaj   +6 more sources

The palms of South America: diversity, distribution and evolutionary history

open access: yesRevista Peruana de Biología, 2014
This article presents an inventory of South American palms including 457 species and 50 genera. The distribution of palms within seven phytogeographical entities is analyzed. Factors which influence the evolution of palms in South America are discussed.
Jean-Christophe Pintaud   +12 more
doaj   +3 more sources

Genomic history of coastal societies from eastern South America

open access: yesNature Ecology & Evolution, 2023
AbstractSambaqui (shellmound) societies are among the most intriguing archaeological phenomena in pre-colonial South America, extending from approximately 8,000 to 1,000 years before present (yr bp) across 3,000 km on the Atlantic coast. However, little is known about their connection to early Holocene hunter-gatherers, how this may have contributed to
Ferraz, Tiago   +51 more
  +10 more sources

Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum [PDF]

open access: yesPeerJ, 2023
Injured trilobites present insight into how a completely extinct group of arthropods responded to traumatic experiences, such as failed predation and moulting complications.
Russell D.C. Bicknell, Patrick M. Smith
doaj   +2 more sources

Melite Civitas Romana in 3D: Virtualization Project of the Archaeological Park and Museum of the Domus Romana of Rabat, Malta

open access: yesOpen Archaeology, 2021
The archaeological site of the Domus Romana in Rabat, Malta was excavated almost 100 years ago yielding artefacts from the various phases of the site. The Melite Civitas Romana project was designed to investigate the domus, which may have been the home ...
Tanasi Davide   +5 more
doaj   +1 more source

Phylogeny and biogeography of the carnivorous plant family Sarraceniaceae. [PDF]

open access: yesPLoS ONE, 2012
The carnivorous plant family Sarraceniaceae comprises three genera of wetland-inhabiting pitcher plants: Darlingtonia in the northwestern United States, Sarracenia in eastern North America, and Heliamphora in northern South America. Hypotheses concerning
Aaron M Ellison   +6 more
doaj   +1 more source

Evolutionary history of partible paternity in lowland South America [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
Partible paternity, the conception belief that more than one man can contribute to the formation of a fetus, is common in lowland South America and characterized by nonexclusive mating relationships and various institutionalized forms of recognition and investment by multiple cofathers.
Robert S, Walker   +2 more
openaire   +2 more sources

Cycling in South America, 1880-1920

open access: yesAnuario Colombiano de Historia Social y de la Cultura, 2020
Historians have tended to ignore the South American experience of cycling. The continent’s diverse history of sports has been effaced by a popular and academic focus on soccer.
Matthew Brown
doaj   +1 more source

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