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A 120-million-year-old Hyphalosaurus fossil, unearthed in China, reveals a rare case of axial bifurcation, resulting in a two-headed reptile. This remarkable find, published in Biology Letters, represents the oldest known instance of this congenital defect in the vertebrate fossil record. The discovery provides valuable insights into developmental anomalies and evolutionary challenges faced by ancient species.

A 120-million-year-old Hyphalosaurus fossil, unearthed in China, reveals a rare case of axial bifurcation, resulting in a two-headed reptile. This remarkable find, published in Biology Letters, represents the oldest known instance of this congenital defect in the vertebrate fossil record. The discovery provides valuable insights into developmental anomalies and evolutionary challenges faced by ancient species.

Scientists found fossils of a new, small dinosaur. This dinosaur, Enigmacursor mollyborthwickae, was about the size of a dog. It lived 150 million years ago with giant dinosaurs like Stegosaurus. The discovery shows how diverse dinosaur ecosystems were. It also challenges old ideas about dinosaur dominance. The dinosaur is now at the Natural History Museum.