Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.

A fossil from a seagull-sized winged reptile that lived millions of years ago was found in Arizona, and the creature has now ...

So much science starts with deciphering a genome, the blueprint for every being on Earth. With such roadmaps in hand, ...

Imagine holding a living creature so tiny it could perch comfortably on the tip of your finger, barely larger than a grain of ...

A new fossil study reveals that teeth began as skin sensors, helping explain why modern teeth still react painfully to cold ...

A Smithsonian-led team of researchers have discovered North America's oldest known pterosaur, the winged reptiles that lived ...

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying reptile, that reveal a time of transition when venerable lineages that were ...

Researchers at the University of New Mexico have identified the presence of bacteria in the healthy brains of fish.

Mysteries surround the elusive Greenland shark, the longest-living vertebrate in the world. Researchers have new insight into the unique fish’s genetic makeup.

Mysteries surround the elusive Greenland shark, the longest-living vertebrate in the world. Researchers have new insight into the unique fish’s genetic makeup.

Darwin saw the evolution of the vertebrate eye as one of the biggest challenges for his theory. Lamb and colleagues integrate molecular and morphological evidence across different taxa and propose ...