Scientists found a fossilized poop sample of a dinosaur that ate an aquatic bird that ate a particular type of fish. Study of feathers in the poop sheds light on these early aquatic birds that did not survive the great dinosaur extinction, likely because their fuzzy body feathers did not provide sufficient thermal insulation in the aftermath of the mass extinction event. Other birds with better insulating feathers probably did well. https://www.thebrighterside.news/post/a-feather-found-in-dinosaur-poop-could-help-explain-why-birds-survived-the-dinosaur-extinction/ 1/n