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Morphology

Skin Structures Skull Structure Predatory Behavior Vertebrates Chelicerae Cloaca Crocodilian Features Dietary Strategies Feathers Body Size Chelicere Mosaic Anatomy Dental Structures Fossil Preservation Predatory Adaptations Digit Structure Body Contraction Skeletal Structure Insect Anatomy Fur Characteristics Feather Structure Skin Structure Mandibles Spiny Slugs Eye Structure Fossils

10 ARTICLES

2w ago

New Cretaceous Bird Plumadraco Has Tail Feathers Twice Its Body Length

Analysis of feather chemistry alongside anatomical features indicates the paired hyperelongate tail feathers were ornamental for mate display, evidence of sexual selection 121 million years ago.

8 ARTICLES

2mo ago

Oldest Chelicerate Fossil Dates to 500 Million Years Ago

10 ARTICLES

2mo ago

Micro‑CT Reveals New Korean Dinosaur Species, Doolysaurus, From Juvenile Skeleton

8 ARTICLES

3mo ago

New Species Crocodylus lucivenator, Likely Predator of 'Lucy,' Described From Ethiopia

3 ARTICLES

3mo ago

Landmark Study Chronicles 35-Million-Year Evolution and Extinction of Sloths

Morphology

New Cretaceous Bird Plumadraco Has Tail Feathers Twice Its Body Length

Oldest Chelicerate Fossil Dates to 500 Million Years Ago

Micro‑CT Reveals New Korean Dinosaur Species, Doolysaurus, From Juvenile Skeleton

New Species Crocodylus lucivenator, Likely Predator of 'Lucy,' Described From Ethiopia

New Dinosaur With Hollow Skin Spikes Identified in China

Haolong dongi Fossil Reveals Cellular-Level Skin and Unique Cornified Spikes

Study Finds Rodent Thumbnails Are Widespread and Ancient

310-Million-Year-Old Fossil Reveals Earliest Tongue-Bite in Ray-Finned Fish

Blue Sharks Reveal Dynamic Nanostructures Enabling Color Change

Landmark Study Chronicles 35-Million-Year Evolution and Extinction of Sloths