In 1992 an incredible fossil discovery was made. A group of scientists dug up and found a group of fossils of a dinosaur near some eggs, suggesting he was stealing them. Thus they called this dinosaur species "oviraptor".
However, years after, another team discovered very similar eggs and were able to extract a fossil from one of those eggs. The fossil was in fact an oviraptor itself, which meant that the original "thief" was actually misinterpreted, and it was in fact the parent! As they excavated all the fossils they were astonished at the scene of a fossilised dinosaur sitting on the eggs. What's even more remarkable is that it was in the exact same position that today's birds adopt when sitting on their eggs! This was another hint that birds actually evolved from dinosaurs!