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Top Stories for November 30

RFS was unable to perceive or copy digits 2-9.
King penguins from the breeding colony in the King penguin park in Tierra
del Fuego, Chile. Image credit: Aurora Fernández Durán (photographer).

Parsing penguins’ evolutionary success

Changing environmental conditions and genetic adaptations may explain how penguins radiated and expanded their geographic ranges to encompass diverse environments.

CNN
NPR

Research article published in PNAS
“Genome-wide analyses reveal drivers of penguin diversification,” by Juliana A. Vianna, et al.

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A male mallard duck. Image credit: Sándor Borza (photographer).
COVID-19. Image credit: Pixabay/PIRO4D.

US racial inequality: A pandemic-scale problem

In the United States, mortality rates and life expectancy were worse for Blacks during nonpandemic years than for Whites during the COVID-19 pandemic, a study finds.

CNN
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Research article published in PNAS
“US racial inequality may be as deadly as COVID-19,” by Elizabeth Wrigley-Field

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Highland wild dog. Image credit: Anang Dianto (photographer).
Highland wild dog. Image credit: Anang Dianto (photographer).

Ancestry of New Guinea singing dogs

Genetic insights could help shore up populations of a rare dog species thought to be nearly extinct in the wild.

New York Times
Science

Research article published in PNAS
“New Guinea highland wild dogs are the original New Guinea singing dogs,” by Suriani Surbakti, Heidi G. Parker, et al.

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Profile of NAS member and engineer Subra Suresh.

QnAs with Enquye Negash, Zeresenay Alemseged, and Jonathan Wynn

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Image courtesy of Mariline Silva and Beatriz Rodrigues.

Adélie penguins at Adélie Cove, Terra Nova Bay

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Kongonaphon kely, a tiny relative of dinosaurs and pterosaurs. Image credit: Alex Boersma (artist).
"A tiny ornithodiran archosaur from the Triassic of Madagascar and the role of miniaturization in dinosaur and pterosaur ancestry," by Christian F. Kammerer, Sterling J. Nesbitt, John J. Flynn, Lovasoa Ranivoharimanana, and André R. Wyss

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Tiny dinosaur relative from Madagascar

A small fossil reptile related to dinosaurs and pterosaurs suggests a miniaturized origin for some of the largest animals to live on Earth.

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Both sides of the 1.4 million-year-old bone handaxe. Image credit: Berhane Asfaw.
"A 1.4-million-year-old bone handaxe from Konso, Ethiopia, shows advanced tool technology in the early Acheulean," by Katsuhiro Sano, et al.

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Advanced Acheulean tool technology

A 1.4-million-year-old handaxe made from hippopotamus bone expands the known technological repertoire of early human ancestors.

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Neolithic cultural level inside ?arska Cave, where one of the earliest cat remains of the Near Eastern lineage was discovered. Image credit: Micha? Wojenka and Magdalena Krajcarz.
"Ancestors of domestic cats in Neolithic Central Europe: Isotopic evidence of a synanthropic diet," by Magdalena Krajcarz, et al.

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Ancestors of domesticated cats in Europe

Ancestors of domestic cats may have existed in a commensal but not yet domesticated relationship with Neolithic farmers.

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