Of all the vertebrates on Earth—that is, animals with backbones—birds are the only ones that lay colorful eggs. Scientists are still unsure why, but new research brings us a step closer to finding out ...

Dinosaurs laid colorful eggs. Birds lay colorful eggs. You do the math. But really though: A study from last year found that oviraptors, a dinosaur of the late Cretaceous period, laid blue-green eggs, ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. If you come across a bird nest there’s usually a pretty good way of telling what kind of ...

The story of that discovery begins just over 100 years ago, when swashbuckling fossil hunter Roy Chapman Andrews first dug up a clutch of dinosaur eggs in intact nests in Mongolia. (Although hailed as ...

The rainbow of hues seen in modern bird eggs probably evolved in birds' dinosaur ancestors, which had eggs with colorful and speckled shells. That's according to a new study of fossil eggs in the ...

The colorful, speckled eggs of modern birds are an innovation inherited from their nonavian dinosaur ancestors. Researchers found no traces of pigment in eggshells belonging to a long-necked ...

If we asked you to picture dinosaur eggs in your mind, what would you see? A nest full of massive gray or tan eggs? That’s the consensus among most people, but a new study published this week in the ...

Picture a bird egg: Perhaps it’s the cocoa brown of a free-range chicken. Or a robin’s creamy blue-green. If it’s a quail egg, it has inky speckles. Those colors and variations, according to a new ...