Author: Talia Ogliore

Research from Washington University in St. Louis helps flesh out the origin story for the so-called “lost crops” of the Midwest and Northeast. These plants that may have fed as many Indigenous people as maize, but until the 1930s had been lost to history. Natalie Mueller, assistant professor of archaeology in Arts & Sciences at Washington University in St. Louis, shares evidence that bison were “co-creators” — along with Indigenous peoples — of landscapes of disturbance that gave rise to greater diversity and more agricultural opportunities.

Saori Pastore, assistant professor of physics in Arts & Sciences at Washington University in St. Louis, helps explain what happens in nuclei when they decay, scatter among each other or come into contact with subatomic particles. Her recent paper, “Weak Transitions in Light Nuclei,” published in Frontiers in Physics, contributes to a body of increasingly accurate, descriptive calculations of nuclear structure and reactions.

A fossil discovery in South Africa suggests that P. robustus evolved rapidly during a turbulent period of local climate change about 2 million years ago, resulting in anatomical changes that previously were attributed to sex. An international research team including anthropologists at Washington University in St. Louis reported their discovery in Nature Ecology & Evolution on Nov. 9.

Cereal grains — including wheat, rice, barley and millet — are the most important food sources in the world today. Focusing on the ancient history of staple cereals in China, archaeologist Xinyi Liu in Arts & Sciences at Washington University in St. Louis shows how the timing of the translocation of novel food crops reflects a range of choices that communities made — sometimes driven by ecological pressure and sometimes by social conditions or ‘culinary conservatism.’

Li Yang, professor of physics in Arts & Sciences, conducted research with black phosphorus — a material with a thickness of just a few atomic layers — in a study that is hailed as a milestone of the past 50 years by the Physical Review B, an academic journal of the American Physical Society.

Scaled survivors of the coldest night in south Florida’s recent history all converged on the same new, lower limit of thermal tolerance, regardless of their species’ previous ability to withstand cold. Biologist James Stroud in Arts & Sciences at Washington University in St. Louis led the team that reported the findings in the journal Biology Letters.

New research from Washington University in St. Louis shows that honey bees rely on chemical cues related to their shared gut microbial communities, instead of genetic relatedness, to identify members of their colony.

Climate change is affecting the spread and severity of infectious diseases around the world — and infectious diseases may in turn be contributing to climate change, according to new research from Washington University’s Living Earth Collaborative working group led by biologist Amanda Koltz in Arts & Sciences.

Michael Wysession, professor in earth and planetary sciences, and Bryn Lutes, a lecturer in chemistry, both in Arts & Sciences at Washington University in St. Louis, believe that high school students will learn chemistry better when they crunch actual climate data, rather than memorize the periodic table by rote. They helped write a national chemistry curriculum that is loaded with real-world examples — like ocean acidification — and is already being rolled out by school districts in Los Angeles and other parts of California.

Keith Hengen, assistant professor of biology in Arts & Sciences at Washington University in St. Louis, received a three-year $1.8 million grant to study the role of sleep and waking behavior in shaping the brain’s neural dynamics. His research will help scientists understand how sleep contributes to healthy cognition and shed light on the mechanisms by which disrupted sleep worsens neurodegenerative and mental health disorders.