The Conversation

When artificial intelligence comes up, people may immediately picture chatbots generating conversational dialogue. But that’s just one application of AI; many others are valuable tools for scientists.

Consider the work of Rice University anthropologist Manuel Domínguez-Rodrigo. To get at the question of whether early human species were hunters or the hunted, Domínguez-Rodrigo turned to computer vision. He and his colleagues “trained AI on hundreds of microscopic images showing tooth marks left by the main carnivores in Africa today.” Then they had the AI model consider the tooth marks left on Homo habilis bones from individuals who lived 1.85 million years ago in East Africa.

The AI model suggests the ancient bones were chomped by leopards, big cats that aren’t at the very top of the food chain. If a leopard can take you down, you’re probably not on top of the food chain either. So was it Homo habilis that left behind evidence of tool use and hunting – or another early human species? Domínguez-Rodrigo explains what this AI-driven finding means for the big-picture story we tell about human evolution.

Also in this week’s science news:

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Maggie Villiger

Senior Science + Technology Editor

If Homo habilis was often chomped by leopards, it probably wasn’t the top predator. Made with AI (DALL-E 4)

AI reveals which predators chewed ancient humans’ bones – challenging ideas on which Homo species was the first tool-using hunter

Manuel Domínguez-Rodrigo, Rice University

Paleoanthropologists have thought that Homo habilis was the first stone-tool maker and meat-eater in our genus. But new research suggests H. habilis might not have been so advanced.

A mummy of a juvenile duck-billed dinosaur, Edmontosaurus annectens, preserved as a dried carcass. Tyler Keillor/Fossil Lab

Dinosaur ‘mummies’ help scientists visualize the fleshy details of these ancient animals

Paul C. Sereno, University of Chicago

A clay layer one-hundredth of an inch thick preserves the fleshy details of dinosaurs buried suddenly in east-central Wyoming.

High-level steering winds sent Hurricane Melissa on a sharp turn directly into Jamaica on Oct. 28, 2025. Cooperative Institute for Meteorological Satellite Studies/University of Wisconsin-Madison

Hurricane Melissa turned sharply to devastate Jamaica − how forecasters knew where it was headed

Ethan Murray, University of Colorado Boulder

Tropical storms are guided by many different wind patterns: big, like the Bermuda high, and small. A hurricane researcher explains their role in why so many storms veered off into the Atlantic in 2025.

Why your late teens and early 20s are crucial times for lifelong heart health

Jewel Scott, University of South Carolina

Young adults can take basic but powerful steps to address risk factors that set the stage for heart disease.

The physics and material science of woven baskets

Guowei (Wayne) Tu, University of Michigan; Evgueni Filipov, University of Michigan

3D woven baskets are geometrically sophisticated, with some incredible properties that engineers can use to design materials and technology.

A flexible lens controlled by light-activated artificial muscles promises to let soft machines see

Corey Zheng, Georgia Institute of Technology; Shu Jia, Georgia Institute of Technology

This lens modeled on biological eyes could make it easier to give soft machines and bio-safe tools the ability to see.

Why you can salvage moldy cheese but never spoiled meat − a toxicologist advises on what to watch out for

Brad Reisfeld, Colorado State University

Molds and bacteria can produce dangerous toxins − and they don’t taste very good, either.