When more complex is simpler

When more complex is simpler

A new modeling framework proposed by physicist Mikhail Tikhonov in Arts & Sciences demonstrates how a more complex microbial ecosystem can be more coarse-grainable, making it potentially easier for scientists to understand, than one with only a few microbes interacting.
Nonlethal parasites reduce how much their wild hosts eat, leading to ecosystem effects

Nonlethal parasites reduce how much their wild hosts eat, leading to ecosystem effects

Research from the Living Earth Collaborative highlights the cascading consequences of common parasitic infections. Although many of these infections are not lethal, they can still impact health or animal behavior, leading hosts to eat less vegetation. The study led by biologist Amanda Koltz in Arts & Sciences is published in the Proceedings of the National Academy of Sciences.
Class Acts: Gabriella Smith

Class Acts: Gabriella Smith

Gabriella Smith, a senior biology major in Arts & Sciences at Washington University in St. Louis, is a champion for access to mental health services. She hopes to combine her passion for working with children with her leadership skills to pursue a career in medicine that incorporates patient care, research and advocacy.
Class Acts: Akhil and Rohith Kesaraju

Class Acts: Akhil and Rohith Kesaraju

At the end of high school, twins Akhil and Rohith Kesaraju were ready to go their own ways. Then they visited Washington University, and everything changed. Now, preparing to graduate, the Kesaraju twins have grown both apart and together on parallel paths of service and research.
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