When you picture a dinosaur, what does it look like? For Jingmai O'Connor, paleobiologist and associate curator of reptiles at the Field Museum of... Birds are dinosaurs. Here's how scientists know ...

When this researcher first laid eyes on a fossil, she instantly realized it was a new dinosaur species that had likely died a ...

In this Brooklyn Bird Watch, we’ll share some fascinating facts and theories about the life of birds millions of years ago, and stay tuned for follow-up pieces about the current realities of our ...

While we know that birds are the descendants of dinosaurs, often forgotten about are the birds that lived with dinosaurs!

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

Why it's awesome: The southern cassowary is one of the most prehistoric-looking birds on Earth. They are often likened to a modern-day dinosaur due to their massive size, vivid colouration and ...

Recent research from the University of Chicago and the University of Missouri shed new light on how the evolution of skull flexibility in dinosaurs led to the diverse array of modern birds we see ...

For more than 100 years, researchers assumed that dinosaurs were like giant lizards: sluggish reptiles that spent most of their day basking in the sun. This image changed when we started to realize ...

Footage shows massive shoebill on boat with tourists watching in awe.

Around 120 million years ago, a bird swallowed over 800 tiny stones and choked to death as a result. Paleontologists aren’t ...

When you picture a dinosaur, what does it look like? Maybe you think of four-legged herbivores like Apatosaurus or Triceratops. Maybe you imagine large armored dinosaurs like Ankylosaurus or ...