Phys.org news

Phys.org / Wildlife imaging shows that AI models aren't as smart as we think

Using AI to identify wildlife reveals a potential "transferability crisis," researchers say. Marketing for AI imaging systems often suggests that models can easily tackle novel scenarios across ecosystems and settings, much ...

Mar 3, 2026
Phys.org / Tiny Purgatorius fossils in Denver Basin hint at early primate spread southward

New minuscule fossils of Purgatorius, the earliest-known relative of all primates—including humans—have been unearthed in a more southern region of North America than ever before, and the breakthrough is providing paleontologists ...

Mar 3, 2026
Phys.org / A fanged frog long thought to be one species is revealing itself to be several

When a new species is discovered, it's tempting to imagine an adventure novel, said Chan Kin Onn of Michigan State University. "Most people have this image of an intrepid explorer braving an isolated mountain or some other ...

Mar 3, 2026
Phys.org / Ancient plant-eater with a twisted jaw and sideways-facing teeth was a 'living fossil' in its own time

In a dry riverbed in Brazil, in a dense forest near the Amazon, a team of paleontologists found a fossilized jawbone from an ancient animal. Over the course of their fieldwork, they found eight similar bones, each around ...

Mar 3, 2026
Phys.org / Rewilding could fill gap left by Panama's lost giants

Many large herbivores that once roamed modern-day Panama have declined or died out—including the 6-meter-long giant ground sloth and elephant-related creatures called Cuvieronius. New research suggests that introducing ...

Mar 3, 2026
Phys.org / Newly excavated Maya wetland settlement shows the civilization's adaptation to changing climate

Past civilizations have been significantly affected by climate change, but how they adapted to new conditions centuries ago is less clear. In research newly published in the Proceedings of the National Academy of Sciences, ...

Mar 3, 2026
Phys.org / Brain structure volume linked to increased social tolerance in macaques

Researchers have found that the size of the amygdala—a region of the brain involved in processing emotions—could be linked to social tolerance in macaque monkeys. Their research, published today in eLife, is described ...

Mar 3, 2026
Phys.org / Radiocarbon dating rewrites angiosperm trees' lifespan records worldwide

For decades, scientists have relied on tree rings to estimate how long trees can live. But new research suggests that this widely used method may have been underestimating the lifespan of many flowering trees—sometimes ...

Mar 3, 2026
Phys.org / Late scientist's notebooks help finish study of rare 55-million-year-old tarpon fossil

Recently-revealed notebooks belonging to a late paleontologist contain the missing information needed to help researchers finish their study of a remarkable fossil discovered nearly three decades ago.

Mar 3, 2026
Phys.org / Discovery of natural mechanism behind ferroptosis solves longstanding puzzle in cell biology

After more than a decade of research, scientists have discovered the natural mechanism behind a novel form of cell death called ferroptosis. The work, described in the current issue of Cell, points toward an entirely new ...

Mar 3, 2026
Phys.org / Reduce rust by dumping your wok twice, and other kitchen tips

When you reach the bottom of a container of milk or honey, you might be tempted to tip the container over to get that last pesky little bit out. After all, you only need another teaspoon for that recipe, and you're sure it's ...

Mar 3, 2026
Phys.org / 70-year field study finds fertilizer imbalance can halve mycorrhizal fungi

Almost all plants live in close symbiosis with so-called mycorrhizal fungi—an important symbiosis for absorbing essential nutrients. In their new study, a team led by ecologist Christina Kaiser from the Center for Microbiology ...

Mar 3, 2026