From Guy Cox
Tamar Stelling reports Andrew Sweetman's search to discover what eats jellyfish, and eventual finding that fish do (16 July, p 26). They also form a substantial part of the diet of juvenile green sea turtles (Chelonia mydas). Adults switch to a vegetarian diet of seagrasses and algae.
Unfortunately, Sweetman's Norwegian fjords are far too cold to attract the turtles, however many jellyfish may be available.
St Albans, New South Wales, Australia
