When I come to National Geographic, I expect to see natural photographs. (Not manipulated images) But why are the dolphins in the foreground of this image so much smaller than the dolphins in the background? And the dolphins in the center of the image are the same size (or smaller) than the ones on the left, which are farther away? This image appears to be grossly manipulated. Not what I expect from National Geographic. How many of the other images on this site are manipulations?