Nearly 200 new gecko species found in living in karst landscapes reveal the rugged regions as dynamic areas of speciation.

A new tally finds dozens of species giving food a second go-round, from babies boosting their microbiomes to adults seeking easier-to-access nutrition.

A new U.S. Surgeon General's report describes the link between drinking alcohol and developing cancer. Many Americans aren’t aware of the risk.

H5N1 has infected 66 people in the United States since early 2024, mostly causing mild illness. A Louisiana man was the first to get severely sick.

Subatomic particles called muons could measure pressure changes in supercell thunderstorms and the twisters they kick up.