Green turtles are quite interesting in that their diet changes as they grow from juvenile to adult. Juveniles are omnivores and feed on invertebrates like crabs, jellyfish and sponges whereas adults are herbivores and feed on sea grasses and algae. This change in diet and move from offshore to inshore waters to find food can sometimes stress out the turtle and result in the early death of it. In the north west of Australia we often find green turtles of 4-5 years age washed up on the shores because of this reason.
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