mountains and jungle and dolphins tend to frequent these places. It is a non-profit entity that functions as the official expression body of the National Geographic Society of the United States.

This story appears in the June 2009 issue of National Geographic magazine. The dolphins are swimming through the trees. Bending sinuous bodies, they glide through branches and curl like snakes ...

You can’t mistake an adult Atlantic spotted dolphin for anything else—the spots are a dead giveaway. This gregarious cetacean isn’t born with those beauty marks, however. Calves start out ...