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?
Meet the sponges
What is an apex predator?
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?
Who can set up a marine park?
Riley rescues a turtle!
What are zooplankton?
Which habitat would you rather live in?
Kelp, help!
Meet the striped marlin
Whales can’t tell the difference between ...?
What is a habitat?
Where do creatures poo in the ocean?
Riley's cool turtle encounter
Tricks to hold your breath longer
Who is the shark's closest cousin?
Mussels do what to the water?
Name this turtle
How many eggs does this huge fish lay?
Which one of these is not a dolphin?
Top tips on saving our oceans
Riley searches for crayfish
Where do whales and dolphins hang out?
Shark Dad jokes