How did they raise their young?
Although no verifiable pterosaur eggs have been found, it is strongly presumed that they were oviparous, just like living archosaurs, birds and crocodiles. Pterosaur nests have not been recovered either, but there is dramatic evidence that at least some species exhibited parental care similar to birds and lived in colonies. A jumble of pterosaur bones from the Atacama desert in Chile yielded a large number of juvenile individuals. This would indicate that, like birds, pterosaurs had a prolonged nesting stage while their parents cared for them until they were grown enough to fly on their own.
