US-based researchers have studied a 161-million-year-old bird-like dinosaur fossil discovered in China. The dinosaur was dubbed Caihong juji, which means "rainbow with the big crest" in Mandarin. Scientists think the dinosaur used its flashy neck feathers and a bony crest on its snout to attract mates. Further, the species had asymmetrical feathers, found in modern birds that help control flight.