Not all photo pairs speak to change trends occurring repeatedly across the landscape. Some features, or the changes that occurred there, are so unique that it would be a surprise to have captured another occurrence in our sample of photo points. The existence of these photo pairs reminds us that we must be careful about the assumptions we make. In ecology, many factors play into each situation operating at multiple temporal and spatial scales.
Browse these photo pairs of unique features capturing some of the more notable events that occurred.