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

When Nicole Yen isn’t in the ocean herself, she’s studying its mysteries and inspiring the next generation of scientists to dive in and explore it, too. She discovered her love for the ocean and its ...

Humans really do rule the world. We took over fast and far, more than any other wild vertebrates. We inhabit nearly every ...

Dear EarthTalk: Are any plants and animals evolving backward by incorporating traits that they lost long ago? -- Joseph R., ...

Scientists have uncovered new clues about some of Earth’s earliest fish, shedding light on the ancient origins of vertebrates ...

The discovery of two ancient fish in South China has re-written what we thought we knew about the evolution of early vertebrates.

Scientists discovered some of the oldest bony fish fossils in China. The fossils explain the early history of animals with backbones.

While Charles Darwin emphasized variation and historical descent, Richard Owen proposed that vertebrates are built around shared structural patterns, irrespective of their evolutionary backstory.

The scientific community unravels the mystery of bradykinin, a molecule found in both vertebrates and some venoms, revealing its evolutionary significance. Bradykinin's recurring evolution in ...

According to the data considered by its authors—a team from the University of Sussex (UK) and Lund University ...

Certain species of wasps and frogs share a pain and inflammation peptide similar to one found in vertebrates to help defend against predators—a discovery that contributes to a shifting view of how ...

How did the eye of vertebrates first evolve? A new study suggests an unusual beginning for this process: our invertebrate ancestors from 560 million years ago were like cyclops, with a single eye on ...