Complex sentence: However, not all scientists agreed that "Caudipteryx" was unambiguously non-avian, and some of them continued to doubt that general consensus.A paleontologist like Alan Feduccia, who opposes the theory that birds are theropods, sees "Caudipteryx" as a flightless bird unrelated to dinosaurs.
Split into simpler sentences: However, not all scientists agreed that "Caudipteryx" was unambiguously non-avian, and some of them continued to doubt that general consensus. Paleontologists like Alan Feduccia, who opposes the theory that birds are theropods, sees "Caudipteryx" as a flightless bird unrelated to dinosaurs.