Imagine a photograph of your great-grandparents, grandparents and parents side by side. You’d see a resemblance, but each generation would look distinct from its predecessors. This is the process of ...

The Hour of Truth: With Dan Bigham recently setting a new World Hour Record in Grenchen, Switzerland. The British rider beat Victor Campenaerts’ record by 400 metres. This got Ed Hood thinking about ...

Dollo's law, as it came to be known, implies that specialization is largely a one-way street, with organisms accumulating layers of complexity that make backward evolution impossible. While Dollo's ...