Atoll Tale

Photograph by Thomas Peschak, National Geographic

Young Gal pagos sharks found around tropical oceanic reefs worldwide nose the camera in the lagoon of the Bassas da India atoll. A protected home for the sharks, Bassas is one of two tiny French territories tucked between Madagascar and southern Africa. The other, le Europa, is a vital breeding area for endangered green turtles.

Thomas Peschak talks about photographing sharks »