A fossil of a small dinosaur has been found on top of eggs containing late-stage embryos that developed at body temperature, confirming that some dinosaurs brooded eggs like birds
Source:
https://www.newscientist.com/article/2263675-fossilised-nest-shows-some-dinosaurs-sat-on-their-eggs-like-birds-do/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home