DNA from old hair helps confirm the macabre diet of two 19th century lions

A pair of male lions that roamed Kenya more than a century ago gained notoriety as the “man-eaters of Tsavo.” To be sure, the big cats hunted and ate people…

Scientists use light to visualize magnetic domains in quantum materials

Light beams of varying intensities (yellow cylinders) help visualize magnetic domains (light and dark areas), separated by domain walls (red lines). Credit: Osaka Metropolitan University When something draws us in…

Despite solar surge, world off track for COP28 renewable energy target

Current plans will only deliver half of the growth needed to hit a global target of tripling renewables by 2030, IRENA warns The world is not yet doing enough to…

Happiness class is helping clinically depressed school teachers become emotionally healthy − with a cheery assist from Aristotle

Uncommon Courses is an occasional series from The Conversation U.S. highlighting unconventional approaches to teaching. Title of Course Evidence-Based Happiness for Teachers What prompted the idea for the course? I…

Alcatraz AI Biometrics: Next-Level Workplace Security

Workplace safety is an increasing concern in modern environments. Advances in artificial intelligence (AI) and machine learning (ML) are driving innovative hardware solutions to reduce the risk of unauthorized access.…

Richard Dawkins’ reverie on the twists and turns of evolution is a ‘do not miss’ book

What, do you suppose, is the closest living relative of the hippopotamus? The rhinoceros, perhaps? The pig? In fact, it’s the whale. [D]id you know … that some cuckoo chicks…

Astronomers find Webb data conflict with reionization models

Simulation of galaxies ionizing hydrogen gas (bright areas) during the epoch of Reionization. Credit: M. Alvarez, R. Kaehler, and T. Abel / European Southern Observatory (ESO). Reionization is a critical…

Public attitudes to mental health decline for the first time in 10 years

Credit: Pixabay/CC0 Public Domain Research led by the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King’s College London and commissioned by Mind warns that public attitudes to mental health…

AI-powered software narrates surroundings for visually impaired in real time

As a user scans their phone camera around a room, WorldScribe will create brief audio descriptions of the objects recorded by the camera. Credit: Shen-Yun Lai, used with permission A…

Could the mysterious force we think of as constant actually vary over cosmic time?