Potatoes may have shaped genetic makeup of Indigenous Andeans
Peer-Reviewed Publication
Updates every hour. Last Updated: 22-Jun-2026 18:16 ET (22-Jun-2026 22:16 GMT/UTC)
Evolutionary biologists and anthropologists found that natural selection favored Indigenous Andeans who had an unusually high number of salivary amylase genes (AMY1) starting around 6,000 to 10,000 years ago — the same period when potatoes were first grown in the Andean highlands,
Remote collaboration software tools, such as Zoom or Google Docs, have become essential for teamwork – but they often overlook the fact that people do not all approach collaboration in the same way. Researchers have now developed a new human-computer interaction (HCI) method called RemoteCollabEval (RCE) to identify barriers to collaboration and inclusivity, allowing designers and developers to build software features that better support diverse teamwork styles.
Penn Engineers have developed a new way to use AI to solve inverse partial differential equations (PDEs), a particularly challenging class of mathematical problems with broad implications for understanding the natural world. The advance, which the researchers call “Mollifier Layers,” could benefit fields as varied as genetics and weather forecasting, because inverse PDEs help scientists work backward from observable patterns to infer the hidden dynamics that produced them.