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

Earth’s vertebrate diversity may be far richer than anyone realized. A sweeping analysis of more than 300 studies suggests that for every known fish, bird, reptile, amphibian, or mammal species, there ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

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 ...

In a study published in Science, an international research team from the Mansoura University Vertebrate Paleontology Center ...

By closely monitoring fish throughout their lives, researchers found that simple behaviors in midlife—like movement and sleep ...

How did ancient fish perceive their environment in the deep sea? An international team led by scientists from the Natural ...

Scientists have revealed new details about ancient fish more than 400 million years old, which became the ancestors of terrestrial vertebrates. The research results provide a unique insight into the ...

Then, without warning, colors start rippling across its skin — flashes of deep crimson, bursts of mottled brown, rapid shifts ...

This bizarre-looking fish may seem otherworldly, but every part of its design solves a real problem: how to see, hunt and ...