Lyall Watson

Air is traditionally 'thin,' but the more we learn about our atmosphere, the more substantial it becomes. In some places it is so filled with inorganic flotsam that it is almost thick enough to plough; in others, it has become so primed with the by-products of life that it comes close to being a living tissue in its own right.

We share our planet quite naturally with a permanent aeroplankton; a buoyant ecology too soft to hear, too small to see, but heavy with mood and meaning. Imagine being aware of all these airy inclusions - and you can begin to understand how it might feel to be able to smell really well.

The genus Drosophila is one of the great success stories. There's hundreds of species within the genus. They're on every continent except Antarctica, they're in tropical rain forests, they're in deserts, they've evolved many exotic mating behaviors, and they're capable of incredibly long-distance flights.

There's great stuff out there, but I prefer doing a TV show, going to work every day with the same people, and a lot of stuff is not being shot in Los Angeles and I don't really want to do that because my loved ones are here.