A fossil misidentified for decades reveals insects before six legs became standard. For nearly 40 years, one of the strangest ...

The C. praecursor specimens were found inside calcareous claystone concretions in the Tesnus Formation of the Marathon Uplift ...

Smithsonian researcher Klara Widrig studies living birds to build 3D models of their ancestors’ anatomies, uncovering how ...

Ancient fossils suggest insects conquered land through a long amphibious phase rather than making an abrupt jump from water to dry ground. A newly identified 324-million-year-old species still carried ...

Most living mammals are small. Because smaller animals were less likely to survive the researchers’ simulated preservation ...

A many-legged oddball from long ago helps fill a major gap in the fossil record — and hints at how insects ended up with just ...

In productive marine environments, a square meter (10.8 square feet) of seafloor can be perforated by hundreds to thousands ...

Nearly 400 fossils discovered in southern France are giving scientists a detailed view of marine life that lived close to the ...

By now, most of us have some knowledge that life on land involved transitioning from the water and evolving the physiological ...

The formation of complex terrestrial ecosystems was a significant innovation in the evolutionary history of life on Earth.

Bite marks on fossil bones suggest giant crocodylians were major predators in Miocene South America. The marks point ...

The fossils were badly damaged during a museum move and then effectively disappeared from scientific study for decades. Their ...