Amazing video at the Guardian of silk being harvested from a spider (and lovely accompanying profile of scientist Fritz Vollrath by Tim Adams).
Bioluminescence last night was lovely too. It is understated rather than spectacular, but the moments when you run your fingers through the water and see sparkles coming off them are truly like something from Peter Pan! It is also just incredible being out at night in a kayak on a beautiful secluded bay: it renews my resolve to do more kayaking (and also to get the advanced open-water scuba certification so that I can do a night dive!).