It’s a mystery that goes back to the days of Aristotle, flummoxing biologists and mathematicians for centuries: Why do birds’ eggs come in so many different shapes and sizes? Why are owl eggs almost ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. We all know what an egg looks like, right? Well, we might know ...

The evolution of the amniotic egg -- complete with membrane and shell -- was key to vertebrates leaving the oceans and colonizing the land and air. Now, 360 million years later, bird eggs come in all ...

The eggs of amniotes - mammals, reptiles and birds – come in a remarkable variety of shapes and sizes. Evolutionary biologists have now addressed shape variety in terrestrial vertebrates' eggs, ...

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 ...

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 ...

Eggs evolved over 300 million years ago and now come in all kinds of shapes, from Tic Tacs to teardrops to pingpong balls. After studying some... How Do Eggs Get Their Shapes? Scientists Think They've ...