Dinosaurs Dinosaur-Bird Relationship Dinosaur Descendants Avian Evolution Modern Birds Avian Dinosaurs Feathered Dinosaurs Hawaiian Ibis Genetic Changes Mesozoic Birds Non-Avian Dinosaurs Dinosaurs as Birds Dinosaurs are Birds Birds as Dinosaurs Ancient Species Non-avian Dinosaurs Flight Adaptations Dinosaur-Bird Connection New Zealand Wrens Prehistoric Birds Protobirds Guineafowl as Model Organisms Neornithes
Researchers say the preservation suggests differences in feather insulation may help explain why ancestors of modern birds survived the end‑Cretaceous impact while other avian lineages died out.