Two hatchling pterosaurs with fractured arm bones point to ancient storms as the cause of mass casualties preserved in Germany’s Solnhofen Limestone.

A new analysis suggests that recent extinctions have been rare, limited mostly to islands and slowing. But others argue this is all just semantics.

The fast radio burst came from 130 million light-years away. That proximity allowed an in-depth search for what produced the mysterious signal.

Rodents may have a rule of thumbnails. Many rodents have curved claws that help the animals climb or dig. But most also have flat nails on their thumbs, researchers report in the Sept. 4 Science. This ...

On Mars, the Perseverance rover found a spotted rock that could bear signs of ancient life. On Earth, a researcher used a lookalike for a dry run.

A recent cold appears to be a defense against COVID-19 and a partial explanation for kids’ tendency toward milder coronavirus infections.

Researchers found that fruit fly sperm push against one another and align in orderly bundles, preventing knots that could block reproduction.

In late August 2005, Hurricane Katrina devastated the U.S. Gulf Coast. The storm cut a deadly swath through Louisiana, Mississippi and Alabama, deluging coastal towns as surges of ocean water swept ...

European artisans turned a Tang Dynasty tomb guardian sculpture into a symbol of medieval Venetian statehood, researchers say.

In a first, astronomers imaged a baby planet within a gap in the disk of material around a star, confirming predictions about how rings form.

Mice treated with the protein, which is found in bacteria, quickly eliminated carbon monoxide from their body in their pee.

Life teems under the Antarctic ice sheet. In subglacial Lake Mercer, it is surprisingly versatile and isolated from the rest of the world.