The navel scar was discovered using laser imagery. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Paleontologists have discovered the oldest ...

Scientists had long speculated that egg-laying dinosaurs would have an umbilical scar, but this study is the first to find evidence of one. (Pictured: artist representation of a Psittacosaurus and its ...

QUILL THRILLDescribed in 2002, these filaments along the dinosaur’s tail were the first non-scale skin structures ever found on an ornithischian, the large and diverse group of dinosaurs that includes ...

Paleontologists have discovered the oldest belly button known to science on a 125 million-year-old fossil of a dinosaur in the genus Psittacosaurus. Oh, the fossil also had the first dinosaur butthole ...