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While sorting through animal bones in a rock shelter in Queensland, Australia, archaeologists came across a tooth where something was "not quite right." Stuck to the tip of its root was a blackish-brown ball of glue-like ...

Gram-negative bacteria are responsible for several infections that are hard to treat because of their high resistance to antibiotics. These bacteria possess an outermost layer called the outer membrane that acts as a protective ...

A new study led by Flinders University has flipped the historical narrative about Australia's thylacine, finding the native apex predator known as the "Tasmanian tiger" was significantly different from the wolves and wild ...

Researchers have been elucidating the structures of complex molecules for more than 100 years using a variety of techniques. Some molecular structures, however, are more difficult to solve than others.

Graphene is flat. But that doesn't mean other 2D materials—particularly those containing more than one element—necessarily share the same structure. In the past, researchers have often simplified these materials by modeling ...

Autoimmune diseases arise when the immune system mistakenly attacks the body's own tissues. Researchers have long known that these diseases tend to run in families, but the genetic relationships between different autoimmune ...

Well before I start collecting coats, keys or shoes, my dog always knows when we're about to leave. By picking up on subtle cues, he anticipates our next movements, reminding me he's smarter than he often shows. But anticipation ...

Two tiny ant fossils recovered in southern Saskatchewan are helping scientists better understand the evolutionary history of modern ants. Ant fossils dating from 72–56 million years ago are rare. What happened to insects ...

Community first responders did not improve 30-day survival in patients with out-of-hospital cardiac arrest, according to results presented in a Hot Line session today at ESC Congress 2026.

Most people experience numbness or the familiar pins-and-needles sensation from time to time. Often, it is harmless and occurs temporarily, because you have been sitting, standing or sleeping in a position that puts pressure ...

Cats, dogs, wolves and other agile four-legged animals can easily jump and squeeze through tight spaces while moving at high speed. Reproducing similar agile motions and skills in quadrupedal robots has so far proved challenging.

Patents are far more than legal documents protecting intellectual property. They are a vast source of scientific information about chemicals under development, often years before they appear in products or in the environment. ...