Maxi is 5 but has been a fan of dinosaurs and prehistoric marine reptiles for as long as he can remember.  He feels sad that they aren’t around any more (and he has a plan to build a time travel machine to go back and see them), but he was even sadder to find out how today’s marine creatures are at risk from so much plastic, pollution and overfishing in the oceans.  Last year he adopted a shark, and whenever he is by the sea he hunts down plastic, everywhere else he tries to convince family, friends and anyone he meets to use less plastic.  He takes Hugo, a jellyfish he made that’s caught up with different types of rubbish, to show them.