Imagine an experiment. Take an iceberg lettuce, Lactuca sativa, and leave it in a warm oven for a few days. What will happen? The outcome is not surprising. It shrinks by a very large amount. Who cares? I’ve been thinking about this ‘shrinkage effect’ for some time now, and it turns out that it matters…

How many species are living around you right now? The answer may be larger than you think. Last week I was in the mountains of Greece with a group of biologists, and we challenged ourselves to answer this question. In two hours of walking around the forest, how many species could we find and positively…