27 agosto 2014
About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today’s amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TeqbEJguR50/140827131547.htm
