This site presents the idea that birds developed from flying pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs.
Alos cool:https://www.youtube.com/watch?v=Nhp7w_VQHEI
Alos cool:
ReplyDeletehttps://www.youtube.com/watch?v=Nhp7w_VQHEI