It’s a common misconception – led by our familiarity with chicken’s eggs – that birds lay eggs in two colors: brown and white. But that couldn’t be further from the truth. In fact, the Cassowary’s ...

A bird egg can look surprisingly oversized for the body that produced it. That puzzle becomes even stranger when viewed ...

A new study has uncovered a fundamental link between brain size and offspring size, helping to solve a long-standing evolutionary puzzle: Why do birds lay such disproportionately large eggs?

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...