Select a fact file ------------------------ Select an animal __________________ Shore crab Barnacle Limpet Mussel Sea otter Harbour seal Mackerel Plankton Basking shark Bottle nosed dolphin Cod Octopus Compass jelly fish Lobster Starfish Pilot whale Wolf eel Hatchet fish Periphylla jellyfish Sniper-scope fish Sperm whale Deepsea angler fish Deep sea comb jelly Sixgill shark Hagfish Gulper eel Tube worms Vent mussels Vent fish Vent shrimps Select an Infoburst ------------------------ Bioluminescence Black smoker Chemosynthesis Gills Photosynthesis Seaweed Mammals Crustaceans Molluscs Segmented worms Jellies Fish Starfish/urchins

How does water temperature affect the distribution of life in the oceans?

	In the first Blue Planet challenge, Journey to the Deep, you can explore some of the ocean's habitats and encounter an array of marine animals as you venture from a familiar rocky shoreline to the weird waters of the deepest abyss. You can find all the information you will need to complete the challenge in the dropdown fact files and infobursts.

	Sunlight can only penetrate about the top 100m of the oceans, beneath that everything is permanently dark.