The curved shape of a zebrafish egg causes unequal cell divisions, creating larger cells near the animal pole and smaller ...

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 ...

The mystery of why birds’ eggs come in so many shapes has long been up in the air. Now new research suggests adaptations for flight may have helped shape the orbs. Stronger fliers tend to lay more ...

June 22 (UPI) --Bird eggs encompass a wide variety of shapes and sizes. Some of that variety, new research suggests, can be explained by adaptions for flight. Researchers developed a model combining ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Even if you started off your morning with a nice omelette, you probably didn’t spare a ...

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 ...

Kathryn MacRoberts, a small farmer with Laughing Duck Farm in Newcastle, shows chicken and quail eggs that she's collected as her barn cat gets in a peek in 2015. Lezlie Sterling [email protected] ...

The evolution of the amniotic egg -- complete with membrane and shell -- was key to vertebrates leaving the oceans and colonizing the land and air but how bird eggs evolved into so many different ...

Mary Caswell Stoddard, an assistant professor in Princeton’s Department of Ecology and Evolutionary Biology, proposes a far-ranging hypothesis regarding how and why bird eggs acquire their shapes. Her ...