New research from the University of St Andrews has discovered that vertebrates make higher numbers of different forms of ...

Gathering vision data for hundreds of vertebrates and invertebrates, University of Arkansas biologists have deepened scientists’ understanding of animal vision, including the colors they see. The ...

Go back far enough in our history–maybe about 650 million years–and you come to a time when our ancestors were still invertebrates. That is, they had no skulls, teeth, or other bones. They didn’t even ...