The latest clues hint at where pterosaurs — the first vertebrates to fly — came from, how they evolved, what they ate and more.

Learn how increased protein diversity in signaling genes may have helped drive the shift from invertebrates to vertebrates, reshaping how animals with a spine evolved. From frogs and fish to birds and ...

Analysis of a 458-million-year-old fossil fish reveals anatomical insights about the vertebrate skull and how skull organization evolved from that of ancestral early vertebrates to that of jawed ...

After losing its original eyes, one of our distant ancestors may have done what evolution does best: tinkered with what was available, reshaping a single central visual organ into two new eyes. That’s ...