As thousands of bats launch nightly hunting, the cacophony of a dense crowd should stymie echolocation, a so-called “cocktail party nightmare.” ...

From demon to danger noodle, human ideas about snakes can be as contradictory as the creatures themselves. In Slither, Stephen S. Hall challenges our serpent stereotypes.

No longer considered functionless, the “rediscovered” rete ovarii may be crucial for understanding “unexplainable” infertility and ovarian disorders.

New dinosaur fossil tracks on the Isle of Skye reveal that the once-balmy environment was home to both fierce theropods and massive sauropods.

Some question whether the pups are really dire wolves, or just genetically tweaked gray wolves. But the technology could be used to help at-risk animals.

An expanding geographic range for these close Neandertal relatives leaves Denisovans' evolutionary status uncertain.

People are buying semaglutide and tirzepatide, the key ingredients in Ozempic and Zepbound, from unconventional sources. Doctors have safety concerns.

Experiments point to how scientists can strengthen or weaken memories, which may eventually lead to treatments for Alzheimer’s disease or PTSD.

The KATRIN experiment in Germany nearly halved the maximum possible mass for neutrinos, setting it at 0.45 electron volts.

Mineral formations in caves reveal recurring periods of humidity in the Arabian Desert over the last 8 million years.

Texas child dies from the preventable disease, HHS Secretary Kennedy is now urging measles vaccination yet still touting unproven treatments.

As global temperatures rise, scientists debate the pros and cons of solar geoengineering, a strategy to cool Earth by reflecting sunlight into space.