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 ...

For years, scientists have tried to crack a mathematical mystery: Is there an equation that can perfectly describe each and every bird egg? Variable shell shapes complicated things. But it turns out ...

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 ...