The iguanas' 8,000-kilometer trip — one-fifth of the Earth’s circumference — is the longest made by a flightless land vertebrate.

This elusive deep-sea predator, found in the frigid waters ... but we didn’t expect that it would be the longest-living vertebrate animal,” Nielsen said. These sharks inhabit the cold, stable ...

The Serra do Assuruá is in the north-central region of the Bahia state of Brazil, on the country’s east coast. The research ...

New species of shark, sea butterfly, mud dragon, bamboo coral, water bear, octocoral, and shrimp were just some of the marine ...

Based on the numerous fossils that have been found, this sea creature seemingly ... but the point in time at which these animals branched away from the phylum of chordata, which lack the rigid ...

The remarkable longevity of these animals is often linked to slow metabolisms, deep-sea habitats, or protective shells that ...

Among them were the chordates, to which vertebrates (animals with backbones ... with a warming climate and rising sea levels flooding low-lying landmasses to create shallow, marine habitats ...

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.