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Riley confronts a big fear
What is a food chain?
Where did all the kelp go?
Riley searches for crayfish
How much oxygen do sea plants produce?
Which sea animal wears armour to survive?
How do spiny rock lobsters grow?
Growing up is tough in a spiky shell
What has 10 legs and super feelers?
What is a kelp forest?
Meet the tastiest creature in the ocean
Crayfish Dad jokes
Should all scientists wear glasses?
How gross are crayfish?