Some feathered dinosaurs like Anchiornis huxleyi may have lost the ability to fly, revealing that the evolution of flight was ...

A newly discovered stegosaur skull from Spain is offering rare insight into the anatomy and evolution of one of Europe’s most ...

An ancient archaeopteryx fossil is offering new insight into the early evolution of birds from dinosaurs. Dating back around ...

A rare fossil fish scan reveals brain features and adaptations tied to the transition from aquatic to land animals.

Nearly 100 million years ago, snakes weren’t the sleek, limbless creatures we know today—they still had hind legs and even a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When dinosaurs ...

A study published in the Nature journal alters how the evolution of fish has been historically understood. Fossilized fish and other sea creatures have often been pivotal in new scientific discoveries ...

The earliest feathered dinosaurs may have evolved their bird-like features while still retaining lizard-like scales on other parts of their body. This theory is based on the discovery of a fossilized ...

A newly discovered pterosaur fossil is shedding light on the evolutionary journey of these ancient flying reptiles. This complete specimen, named Skiphosoura bavarica, provides crucial insights into ...

In 1859, Charles Darwin’s theory of evolution was postulated in “On the Origin of Species.” In this theory, Darwin suggested ...

Dinosaurs are among the most majestic and iconic animals to have ever walked on our planet. While they are now extinct, they ...