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Nov 26, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
POPULATION BIOLOGYA matriarch feeds with her calf in Samburu National Reserve, Kenya. African elephant population trendsAfrican elephants have experienced pressure from ivory harvest and habitat loss over the past several decades. A comprehensive assessment of African elephant population trends has been challenging due to inconsistent monitoring practices across their large range. Charles Edwards et al.
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Nov 21, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
O. Ruhnau, C. Stiewe, J. Muessel, L. Hirth, Natural gas savings in Germany during the 2022 energy crisis. Nat. Energy 8, 1–8 (2023). J. D. Colgan, A. S. Gard-Murray, M. Hinthorn, Quantifying the value of energy security: How Russia’s invasion of Ukraine exploded Europe’s fossil fuel costs. Energy Res. Soc. Sci. 103, 103201 (2023). I. Weber, T. Beckmann, J.-E. Thie, The tale of the German gas price brake: Why we need economic disaster preparedness in times of overlapping emergencies. Intereconomics 58, 10–16 (2023).
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Nov 20, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
Professor Patty Jo Watson died August 1, 2024, at age 92 in Arlington, Massachusetts, after some years of failing health. She was a distinguished archaeological scholar, working in both North America and the Middle East, a leader in the profession of archaeology, and a stellar mentor to many colleagues and students. Field crew, Shell Mound Archaeological Project, western Kentucky, during visit of the Braidwoods, 1978.
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Nov 18, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
Increasing phosphorus loss despite widespread concentration decline in US riversEdited by Nils Stenseth, Universitetet i Oslo, Oslo, Norway; received January 30, 2024; accepted October 10, 2024SignificancePhosphorus (P) reserves in Earth’s rocks are finite. P loss from land to rivers threatens not only food production but also aquatic ecosystem health. Long-term trend analysis of P loss has historically been challenged by sparse data.
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Nov 18, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
AbstractThe Civil War was the deadliest conflict in US history. However, incomplete records have made it difficult to estimate the exact death toll both nationally, and especially, at the state level.
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Nov 18, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
SignificanceRapid color change is an adaptation that has evolved multiple times in animals and is used for dynamic camouflage, communication, thermoregulation, or ultraviolet light protection. However, understanding the evolution of this phenomenon is hindered by a lack of information on the costs associated with rapid color change.
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Nov 18, 2024 | 
pnas.org | Marcus W. Feldman |Andrew Myers |Bruce Martin |Jenna Yonenaga
J. L. Graves Jr., A. H. Goodman, Racism Not Race, Answers to Frequently Asked Questions (Columbia University Press, 2022). National Academies of Sciences, Engineering, and Medicine, Using Population Descriptors in Genetics and Genomics Research: A New Framework for an Evolving Field (National Academies Press, Washington (DC), 2023), https://doi.org/10.17226/26902. W. G.
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Nov 18, 2024 | 
pnas.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
AbstractClimate change poses complex risks without precedent that challenge established planning and risk management tools, including property insurance. The nature and timing of transitions in markets and institutions in response to growing climate risks will shape prospects for future socioeconomic well-being.
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Nov 18, 2024 | 
dx.doi.org | Andrew Myers |Bruce Martin |Jenna Yonenaga |Anurag Agrawal
Edited by Anne Kandler, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany; received February 20, 2024; accepted August 26, 2024 by Editorial Board Member Marcus W. FeldmanAn individual’s ancestry can refer to many forms of inheritance, encompassing the history of one’s genes, beliefs, languages, traditions, and material cultures. Language can serve as a distinct marker of identity that can be learned either from family, community, or both (1).
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Nov 18, 2024 | 
pnas.org | Marcus W. Feldman |Andrew Myers |Bruce Martin |Jenna Yonenaga
C. Darwin, On the Origin of Species: Facsimile of the First Edition (London: John Murray, Albemarle Street, 1859). A. Schleicher, Die Darwinsche Theorie und die Sprachwissenschaft (Hermann Böhlau, Weimar, 1863). C. Darwin, The Descent of Man, and Selection in Relation to Sex (London: John Murray, Albemarle Street, 1871). J. Huxley, Evolution: The Modern Synthesis (Allen & Unwin, London, 1942). E.
