Barney and Gemma explore the creatures of the Great Barrier Reef and the tricks that they use to survive.

A look at the terrifying creepy critters in the Great Barrier Reef, such as boxing shrimp, deadly shells with a poisonous spear, and chomping sharks.

A look at how snot, slime and guts are crucial to helping animal survival on the Great Barrier Reef. From snot sleeping bags to slime-munching babies, in this watery world these gross things help animals live.

A look at the different meat and veggie eaters, as well as the lone diners and pack hunters, and find out how they all link together in a weird and wonderful connection.

A look at the array of different relationships in the underwater world of the Barrier Reef. From the cosiest couples to the most peculiar pairings, these friendships are super strong because often these best mates need each other to survive.

A look at the weird and wonderful creatures in the Great Barrier Reef. With some beautiful and some deadly, these animals are some of the most fascinating on Earth.