OCEANS: Researchers decoding leatherback migrations find danger from fishing Joshua Learn, E&E reporter Published: Thursday, March 20, 2014 The migratory patterns of leatherback sea turtles have been a mystery that has long baffled researchers. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.