The Examined Path Through Urban nature — finding it in cities

The urban naturalist is the person who has decided that the grid does not go all the way down — that the pigeon, the sidewalk crack with its stubborn plant, the nighttime fox all constitute a nature that rewards attention. Nasreddin would have found it wherever he was, because nature, like wisdom, is less a place than a quality of looking. The city is not nature's opposite; it is nature's most recent and most complicated experiment.

The course sequence, in order.

Each step builds on the last.