FOR long we have accepted as well-established and equivalent the five classes of vertebrate animals, but recent zoological ... of the vertebrate phylogenetic tree, most of the branches being ...

We are exploring the role of hydrothermal vents in driving the evolution of novel adaptations in deep-sea animals, throughout the 500+ million year history of complex life on our planet. In many parts ...

The discovery of two ancient fossils shows early mollusks were more complex and diverse than previously thought. Researchers ...

To help you explore this tree and understand the amazing mechanism behind it, we’ve created the NOVA Evolution Lab. Play this Lab and you’ll be on your way to becoming an expert in ...

Jack M Craig, Dr. Blair Hedges, and Dr. Sudhir Kumar, all at Temple University, have built an evolutionary tree that encompasses 455 primates, every species for which genetic data are available.

Researchers at Rice University have uncovered new insights into the evolution of bird behavior, revealing why certain mating ...

Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 ...

offers a new understanding of the intricate factors influencing the evolution of lower jaw morphology in these animals, known collectively as lepidosaurs. The researchers discovered that jaw shape ...