Results 11 to 20 of about 678 (158)

Interpreting spatially explicit variation in dietary proxies through species distribution modeling reveals foraging preferences of mammoth (Mammuthus) and American mastodon (Mammut americanum)

open access: yesFrontiers in Ecology and Evolution, 2022
IntroductionThe end Pleistocene was a time of considerable ecological upheaval. Recent work has explored the megafauna extinction’s role in altering ecosystem processes.
Melissa I. Pardi   +4 more
doaj   +1 more source

Mammut pacificus sp. nov., a newly recognized species of mastodon from the Pleistocene of western North America [PDF]

open access: yesPeerJ, 2019
A new species of mastodon from the Pleistocene of western North America, Mammut pacificus sp. nov. is herein recognized, with specimens identified throughout California and from two localities in southern Idaho.
Alton C. Dooley Jr   +5 more
doaj   +2 more sources

Pervasive duplication of tumor suppressors in Afrotherians during the evolution of large bodies and reduced cancer risk

open access: yeseLife, 2021
The risk of developing cancer is correlated with body size and lifespan within species. Between species, however, there is no correlation between cancer and either body size or lifespan, indicating that large, long-lived species have evolved enhanced ...
Juan M Vazquez, Vincent J Lynch
doaj   +1 more source

Proboscidean mitogenomics: chronology and mode of elephant evolution using mastodon as outgroup.

open access: yesPLoS Biology, 2007
We have sequenced the complete mitochondrial genome of the extinct American mastodon (Mammut americanum) from an Alaskan fossil that is between 50,000 and 130,000 y old, extending the age range of genomic analyses by almost a complete glacial cycle.
Nadin Rohland   +5 more
doaj   +1 more source

American mastodon mitochondrial genomes suggest multiple dispersal events in response to Pleistocene climate oscillations

open access: yesNature Communications, 2020
Pleistocene population dynamics can inform the consequences of current climate change. This phylogeography of 35 complete American mastodon mitochondrial genomes suggests distinct lineages in this species repeatedly expanded northwards and then went ...
Emil Karpinski   +18 more
doaj   +1 more source

Charles Willson Peale’s The Exhumation of the Mastodon and the Great Chain of Being: The Interaction of Religion, Science, and Art in Early-Federal America

open access: yesText Matters, 2015
Although primarily known as a portrait painter, Charles Willson Peale (1741-1827) also possessed a profound interest in natural history. Indeed, Peale eventually founded the first natural history museum in the United States, and, during the end of the ...
Bryan J. Zygmont
doaj   +1 more source

A new Mammutidae (Proboscidea, Mammalia) from the Late Miocene of Gansu Province, China

open access: yesAnais da Academia Brasileira de Ciências, 2016
The "Yanghecun specimen", a proboscidean specimen represented by a mandible from Miocene of China and previously described as Gomphotheriidae, is here reviewed and described as a new genus and species of Mammutidae: Sinomammut tobieni.
DIMILA MOTHÉ   +4 more
doaj   +1 more source

Territorializing/decolonizing South American prehistory: Pedra Furada and the Cerutti Mastodon

open access: yesTapuya, 2019
South American rock art and prehistory with all its controversies is a rich site for exploring the processes of territorialization through which humans shape their understanding of the world in their earliest movements through the environment, and also ...
David Turnbull
doaj   +1 more source

Retour sur la série type de Gomphotherium angustidens (Proboscidea, Mammalia): de Daubenton à Cuvier, et après

open access: yesEstudios Geologicos, 2011
[fr] Les spécimens qui ont permis à Cuvier de décrire le «mastodonte à dents étroites» en 1806, dénommé par lui Mastodon angustidens en 1817, sont révisés.
P. Tassy, U. B. Göhlich
doaj   +1 more source

Labour pains: Content moderation challenges in Mastodon growth

open access: yesInternet Policy Review
After Elon Musk took over Twitter in October 2022, the number of users on the alternative social media platform Mastodon rose dramatically. The sudden influx of new users posed several challenges to content moderation distinct from those in large ...
Charlotte Spencer-Smith, Tales Tomaz
doaj   +1 more source

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