The curved geometry of a fertilized zebrafish egg sets the conditions for a cascade of cellular events that shape the embryo’s earliest developmental stages, according to research from the Institute ...

The eggs laid by birds come in an astonishing variety of shapes: ellipses in hummingbirds, spheres in owls, pointy ovoids in shorebirds and almost everything in between. Avian egg shape has fascinated ...

Some of life’s simplest questions get swept under the rug for a long time—after all, the most widespread phenomena often require the most data to understand. Take the shape of the boring egg, for ...

One of nature's most efficient life-support systems is the egg. Eggs evolved over 300 million years ago as vertebrate animals adapted to living on land. And since then, they've taken on numerous ...

Q. I saw a photo of different kinds of bird eggs and noted not only the obvious, that smaller birds lay smaller eggs, but also that some bird eggs are elongate whereas others are more rounded. What is ...

When Mary Caswell Stoddard started measuring bird eggs from hundreds of species, she wasn’t expecting to learn that most eggs are not egg-shaped. Think about an egg and you’ll probably conjure up an ...

Eggs is eggs, but some are round while others are long and pointy – and now we finally know why. It’s all to do with birds’ flying ability, according to a new study. There are many explanations for ...