User:PrehistoricManiac08/evolution/its
Pterosaurs,
It's completely unknown how they evolved; The earliest fossils already were well-developed for flight. but, many ways have been propoded, and many possible ancestors, too.
Pterosaurs,
It's completely unknown how they evolved; The earliest fossils already were well-developed for flight. but, many ways have been propoded, and many possible ancestors, too.