Scientists have long puzzled over the gap in the fossil record that would explain the evolution of invertebrates to vertebrates. Vertebrates, including fishes, amphibians, reptiles, birds, mammals, ...

The water-to-land transition stands as one of the most significant events in vertebrate evolution, giving rise to the two ...

The researchers from the HiLIFE Institute of Biotechnology, University of Helsinki compared two central bearded dragon lizards (Pogona vitticeps): a normal one and a mutant with no body scales. They ...

Charles Darwin proposed that evolution is driven by gradual variations in organisms that have a survival advantage in a changing environment. But University of Maryland evolutionary biologist Karen ...

Learn how a second pair of eyes helped this 518-million-year-old fish evade predators. Spiders have eight eyes, bees have five, and boxed jellyfish have 24 — but these are the exceptions. The vast ...

An illustration of a four-eyed myllokunmingid, a jawless fish that lived more than 500 million years ago Xiangtong Lei and Sihang Zhang Many spine-bearing creatures, or vertebrates, have a curious bit ...