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 ...

Researchers have discovered a universal mathematical formula that can describe any bird's egg existing in nature -- a significant step in understanding not only the egg shape itself, but also how and ...

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 ...

The unusually long, oval egg of the Indonesian maleo may look a lot like a potato, but this bird is no slouch. When the chicks of these anvil-headed animals hatch, they're almost immediately able to ...

Researchers from the University of Kent, the Research Institute for Environment Treatment and Vita-Market Ltd have discovered the universal mathematical formula that can describe any bird’s egg ...

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 ...