Archaeoraptor is a fossil that was discovered in China in the late 1990s. It is believed to be a transitional species between dinosaurs and birds, showcasing features of both groups. The fossil includes feathers, which suggest that it may have been capable of gliding or flying. Initially, Archaeoraptor was celebrated as a significant find in the study of evolution. However, further analysis revealed that it was a composite of different fossils, leading to controversy in the scientific community. Despite this, it remains an important example of the ongoing research into the origins of avian flight.