Top Ten Photo Galleries 2007, National Geographic News
6. Rare "Prehistoric" Shark Photographed Alive
Flaring gills, three-pointed teeth, and an eel-like body make the frilled shark look like a living fossil. So when a fisher spotted one off Japan in January 2007, he knew he had something special. National Geographic News readers apparently agreed—this gallery was our sixth most viewed of the year.
See full frilled-shark gallery (originally posted January 22, 2007).