How cutting down on junk food could help save the environment

Looking for a new reason to cut down on "junk" food? Besides the obvious health-related benefits, I showed in a recent study that discretionary or junk foods make up a significant proportion of food-related environmental ...

DNA reveals the origins of modern Europeans

Europe is famously tesselated, with different cultural and language groups clustering in different regions. But how did they all get there? And how are they related?

What medieval artists teach us about animal sex

The prevailing view is that animals mainly have sex to reproduce. Until recently, therefore, scientists assumed that animals were relentlessly heterosexual. This is the message conveyed by countless zoos, wildlife documentaries, ...

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