Why is plastic so bad for sea creatures?
Can you hold your breath longer than a fur seal?
Why do orca end up stuck on the beach?
What is an apex predator?
Meet the sponges
Whose skull am I holding?
What eats turtles?
Riley confronts a big fear
Riley swims with galapagos sharks
What is this creature?
What's so special about turtle shells?
Is anything scared of a dolphin?
Meet the loggerhead turtle
Sharks have soooo many teeeeeth!
Riley's amazing ray adventure
What is a food chain?
How Dad saved a dolphin!
How do you clean a dirty ocean?
Do sharks drown if they stop swimming?
What do turtles use their back flippers for?
How do rays breathe underwater?
Which fish's poo makes sand?
Riley finds where the baby fish live
Riley explores a marine park
Where do common dolphins call home?
Are shipwrecks good or bad?
What is a habitat?
How does a dolphin move?
Riley rescues a turtle!
Who can set up a marine park?
What are zooplankton?
Which habitat would you rather live in?
Kelp, help!
Meet the striped marlin
Whales can’t tell the difference between ...?
Tricks to hold your breath longer
Where do creatures poo in the ocean?
What is a habitat?
Riley's cool turtle encounter
Who is the shark's closest cousin?
How many eggs does this huge fish lay?
What sea animal eats like a cow?
Name this turtle
Which one of these is not a dolphin?
Mussels do what to the water?
Top tips on saving our oceans
What made this crazy thing?
Riley searches for crayfish