Complex neural circuits likely arose independently in birds and mammals, suggesting that vertebrates evolved intelligence ...

From scales to feathers to fur, vertebrates clothe themselves in a ... of Geneva biologist Michel Milinkovitch visited an Italian animal fair, found scaleless, “naked” bearded dragons for ...

Imagine a world where the boundaries between “fish” and “not-fish” blur, where the ancestors of birds and mammals once swam ...

Earth’s history is filled with incredible milestones, and the emergence of the first animals is one of the most captivating.

Animals are divided into two main groups: Animals with a backbone are called vertebrates. Animals without a backbone are called invertebrates. Vertebrates and invertebrates can be sorted into ...

Vertebrates are thought to have emerged during the Cambrian explosion around 520 million years ago, but the point in time at which these animals branched away from the phylum of chordata, which lack ...

The Cambrian Explosion saw an incredible diversity of life emerge, including many major animal groups alive today. Among them were the chordates, to which vertebrates (animals with backbones ...

There are lots of vertebrates in the animal kingdom. Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals.

Discover 10 fascinating animals with blue blood and learn how hemocyanin helps them survive in extreme and low-oxygen habitats.