Bizarre Spinosaurus makes history as first known swimming dinosaur. A newfound fossil tail from this giant predator stretches our understanding of how—and where—dinosaurs lived.

The mesh-like fossil would push back the oldest known animal on Earth by more than 300 million years. But like many claims of very old life, the study is kicking up lively debate.

What is exciting is that our trace fossils show they had reached the southernmost landmasses by 127 million years ago. This presence means they had likely spread all over Earth by this point. The ...

An international study reveals surprising bird nesting activity in the Arctic during the Late Cretaceous period. Fossils from Alaska show birds were breeding there 73 million years ago. This ...

A giant, strong-jawed salamander once tunneled through ancient Tennessee soil. And thanks to a fossil unearthed near East Tennessee State University, scientists now better understand how it helped ...

Sea-level rise isn’t always slow and steady. Fossil corals from the Seychelles show that it has surged in quick bursts in the past – rising much faster than most people would expect. The fossilized ...

Researchers study the fossils by drilling into ocean sediment to reveal layer upon layer of the calcareous shells. The deeper they go, the further they look back in time. “You can pull up a tube of ...

Fossil fuel advocate Alex Epstein is prodding GOP lawmakers to demand drastic cuts to green energy tax credits as Republicans wrestle over how deeply to slash incentives for renewables.

90-million-year-old pterosaur fossil with 11-foot wings found in Japan. Nipponopterus mifunensis, with a wingspan of 9.8 to 11.5 feet, reveals unique neck bone features linking it to giant flying ...

Litoria tylerantiqua, a 55-million-year-old fossil, is Australia’s oldest known tree frog. It shifts the timeline for frog evolution and underscores the resilience of frogs across mass extinction ...

The fossil, named Shishania aculeata, comes from 500-million-year-old Cambrian deposits in Yunnan Province, southern China—an area renowned for its exceptionally well-preserved fossils. Initially, ...

Balboa Park's Nat museum brings fossils back to life at new $5.1M Paleo Center Amazement in the Basement fossil exhibit opens Friday at the San Diego Natural History Museum in Balboa Park ...