From MSNBC:
Once sea-turtle hatchlings hit the surf, they vanish for up to five years. Where the half-dollar-size tots spend these “lost years” while ballooning to the size of dinner plates has been a mystery, until now.
New research, published in the online edition of the journal Biology Letters, indicates the green sea turtles (Chelonia mydas) hide out in the open ocean, where they feast on jellyfish and other marine creatures. Not only did the researchers spot their short-lived sea homes, but they discovered that these reptiles, thought to be lifelong vegetarians, are actually meat eaters as juveniles.
More here.