While the common ancestor of vertebrates with synovial joints is still a mystery, the oldest specimen with evidence of these ...

Most iguanas live in the Americas. But scientists have found evidence some floated to Fiji, likely snacking on their raft ...

Feathers are among the most complex cutaneous appendages in the animal kingdom. While their evolutionary origin has been ...

Scientists discovered a 15-million-year-old fish fossil, Ferruaspis brocksi. It has preserved stomach contents and visible ...

Fiji’s iguanas embarked on one of the most astonishing ocean journeys in history, rafting nearly 5,000 miles from North ...

The only iguanas outside the Americas, Fiji iguanas are an enigma. A new genetic analysis shows that they are most closely related to the North American desert iguana, having separated about 34 ...

At some point after approximately 34 million years ago, the ancestors of the Fiji iguanas arrived on the South Pacific ...

Iguanas have often been spotted rafting around the Caribbean on vegetation and, ages ago, evidently caught a 600-mile ride ...

A subset of North American iguanas likely landed on an isolated group of South Pacific islands about 34 million years ago — ...

A new study analyzing diet, average plasma sugar levels and cancer prevalence in some 273 vertebrate species showed surprising results. The study found no significant link between diet and plasma ...

A new study examines cancer prevalence across hundreds of vertebrate species. Every multicellular creature, whether soaring ...