It’s hard to overstate how much of a game-changer it was when vertebrates first rose up from the waters and moved onshore about 390 million years ago. That transition led to the rise of the dinosaurs and all the land animals that exist today. “Being able to walk around on land essentially set the
Source: Harvard Scientists Reconstruct the Game-Changing Evolution From Fin-to-Limb in Early Tetrapods
Darwiniana 