Survival of the fittest

Yes, I know when people say survival of the fittest, it's not necessarily those that can run the furthest, but in this case it is. if you're on Nike+ you might want to stick up for whichever scientific discipline you most identify with and take part in this challenge:

I know biology's best, but surely there must be some chemists that like running? Would be good to have a bit more competition there!

Yes, you could argue that those that are running are spending less time actually doing anything scientific, but that's not the point : P