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Miocene South America was packed with giant prey--and the predators hunting them were just as spectacular. Fossil bite marks suggest crocodylians, especially the enormous Purussaurus neivensis, were more important predators than mammals in this ...

A tomb in Egypt's Theban Necropolis reveals a surprisingly organized story of burial, reuse, and changing beliefs spanning hundreds of years. Researchers found 16 mummified people, the remains of at least four more, and a mummified dog, with burials ...

Silver nanoparticles can precisely slice DNA and create longer "sticky ends," helping genetic fragments join up to five times more efficiently than conventional methods. The breakthrough could eventually simplify the construction of large DNA ...

Researchers have built microscopic, light-driven robots that can rapidly navigate through liquid, collect bacteria, and deposit them in chosen locations. These tiny "cleaners" could open new possibilities for manipulating cells and microbes with ...

Traveling electrical waves sweeping across the brain may help determine what we notice, predict what comes next, and construct our internal picture of the world. Researchers now argue that these waves aren't just background activity--they could be a ...

A magnetar's colossal magnetic field may have revealed a quantum effect predicted by Werner Heisenberg nearly 90 years ago, in which seemingly empty space alters the behavior of light. If confirmed, the discovery could offer the first direct evidence ...

Einstein's abandoned cosmological constant made a spectacular comeback when astronomers discovered that the universe's expansion is accelerating. It now sits at the heart of our best cosmological model--a model that works extraordinarily well, yet .. ...

Childhood criticism can leave people carrying a fear of failure long into adulthood, but new research suggests those emotional patterns may be surprisingly flexible. Young adults who revisited painful memories through imagery-based therapy showed ...

Scientists studying three artisan British cheeses found that the microbes responsible for their distinctive flavors may also offer surprising benefits for gut health. As the cheeses matured, helpful bacteria transformed their aromas and textures ...

Astronomers may finally have a clue to what happens to the mysterious "little red dots" that crowded the early universe. By studying a spiral galaxy nicknamed the "Saguaro," researchers found a compact, bright red center that closely resembles these ...