Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

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 ...

When I read in The New York Times today that pigeons can do math, I practically got up and did a jig. I've always said math is for the birds, but who knew that it would be math's academic twin, ...