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Snakes are highly modified lizards, with more than 4,000 living species today. The origin of snakes has long been one of evolutionary biology's most debated questions. Their sparse fossil record has made it hard to pin down ...

A research team has developed a new theoretical framework that can suppress light scattering in certain directions while enhancing it in others, even in irregularly arranged materials. The work extends research on controlling ...

Optical fiber has already transformed the modern world. New research now suggests it could do even more. A new flat-fiber fabrication technique produces a high-fidelity sensor for a wide range of applications, from batteries ...

Have you ever noticed how babies get hooked the moment someone makes eye contact with them? That eye contact is not only cute; it may also send a powerful message to a baby. For years, scientists have been investigating whether ...

"Always finish your antibiotics" is no longer considered medical best practice for all conditions. Surprised? You're not alone.

Imaging turnaround times continued to increase across modalities through 2024, according to a study published online Aug. 3 in Journal of the American College of Radiology.

How do we remember the distant past? For decades, scientists have believed synaptic potentiation—the adaptive strengthening of our brain's cellular connections—to be the key to memory retention. Researchers from the Okinawa ...

Every 15 minutes, someone in the U.S. dies from a drug-resistant superbug. A few decades from now, antibiotic-resistant bacterial infections threaten to become the leading cause of death worldwide, outpacing cancer.

States are moving faster and further than federal regulators to get kratom off store shelves, with some banning the herb outright while a pending federal rule targets only one of its chemicals.

An international team of researchers from Belgium, France, Switzerland, Spain and the U.S. has reconstructed the evolution of body mass in carnivorous mammals during the Paleogene—a crucial window in the diversification of ...

I teach a university course called Hormones and Behaviour. What surprises students is that biological sex is not produced by a single switch. What surprises me is that many students have never been taught this before. It ...

For more than two decades, the quasar PHL 1811 has been considered the prototype of a rare class of "intrinsically X-ray weak" quasars, thought to produce unusually little X-ray radiation. But in 2024, the Einstein Probe ...