When I signed up to study ecology, I had visions of visiting exotic biomes. I daydreamed of swimming through Caribbean reefs and discovering a new species of pufferfish or finding a violet poison dart frog in Amazonia. The reality is that you have to go where the money will take you. So there I was, knee-deep in the effluent from Grimesworth Dye Works in a freezing polluted stream, sifting out the red water mites to take them back to the lab and test them for mutated bacteria. This dominated my life, regardless of the season. I was paying my dues for my PhD.