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, ...

In the quiet layers of rock, footprints, bones, and leaves tell a story of worlds lost, and of our own uncertain future. Every year, National Fossil Day invites us to pause and think about the ...

We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like ...

Cactus evolving faster than expected explained: New research reveals cacti are evolving and creating new species at a ...