This is the third article in our Contested Spaces series. These pieces look at the conflicting uses, expectations and norms that people bring to public spaces, the clashes that result and how we can resolve these.

Sound is everywhere. In urban...

Every year tens of millions of Christmas Island red crabs migrate from the island’s dense forest to the cliffs to spawn. It’s a phenomenon that literally stops traffic and draws tourists from around the world to the tiny Australian territory.

But while there are still tens of millions of red crabs on the island, in recent years their...

About 375 million years ago, certain fishes had developed powerfully strong paired fins that were capable of transporting them out of the water and onto land.

These fishes would eventually evolve into the first truly terrestrial animals, called tetrapods. They had four limbs bearing digits – fingers and toes – to help them when they...