New research indicates that some sauropod dinosaurs, particularly when young, could stand upright on their hind legs to reach food, deter threats, or attract mates.
A newly identified crocodile species, *Crocodylus lucivenator*, lived alongside early human ancestors in Ethiopia over three million years ago and likely preyed on them.
A 40-million-year-old extinct ant was discovered in Johann Wolfgang von Goethe's amber collection, revealing new details about the species through advanced imaging.
Scientists used advanced imaging to study a 380-million-year-old fish skull, revealing adaptations that shed light on how animals transitioned from water to land.
Fossil teeth found in Ethiopia reveal that early *Homo* and an unknown *Australopithecus* species coexisted 2.6 to 2.8 million years ago, challenging linear human evolution theories.
New evidence shows original organic molecules, including collagen, can survive in 66-million-year-old dinosaur bones, challenging previous scientific understanding.
A new giant dinosaur species, *Bicharracosaurus dionidei*, found in Argentina, offers new insights into Jurassic sauropod evolution in the Southern Hemisphere.
A 275-million-year-old animal, *Tanyka amnicola*, had a unique twisted jaw for grinding plants, challenging assumptions about early tetrapod diets.
Scientists have discovered a new species of ancient snake, *Vasuki indicus*, in India, estimated to be up to 50 feet long, making it one of the largest snakes ever.
A 100-million-year-old snake fossil from Argentina, *Najash rionegrina*, reveals hind legs and a cheekbone, challenging previous theories on snake evolution.
A 100-million-year-old fossil in amber has revealed a new true bug species, *Carcinonepa libererrantes*, possessing rare crab-like claws on its front legs.