Carotenoids are pigments responsible for most bright yellow, red, and orange hues in birds. Their distribution has been investigated in avian plumage, but the evolution of their expression in skin and ...

Is it possible that feathers weren’t the first extravagant skin appendages in reptiles? The recent discovery of Mirasaura grauvogeli’s remarkable dorsal crest has upended long-held assumptions about ...

What they discovered — The researchers classified the new dinosaur as a 'compsognathid' theropod — one of a kind of small, bird-like dinosaurs. Theropods themselves are a diverse group of dinosaurs ...

Scientists have found the most elaborately dressed-to-impress dinosaur ever described and say it sheds new light on how birds such as peacocks inherited their ability to show off. The new species, ...

The phylum Nemertina, with more than 800 described species, occupies a wide range of habitats and figures prominently in theories of bilaterian evolution. Integuments of nemertines, from a number of ...

Chinese paleontologists have recently found a new "haired" pterosaur fossil in the Inner Mongolia Autonomous Region in North China after the discoveries of famous feathered dinosaurs in its ...

The evolutionary history and phylogenetic relationships of seed plants have long captivated botanists and palaeobiologists alike. Recent investigations elucidate the mechanisms underlying key ...