WHY scientists explore the sea, Map the sea floor, Discover new animals, Find why animals are disappearing, Track climate trends, Understand food chain, Protect ecosystems, Create medicines, Learn more about animals, Better understand the deep dark ocean, Explore ship wrecks, HOW scientists explore the sea, Submarines, Diving suits, Aqua Lung, Cameras, Robots, Boats, SONAR, Hydrophones, Thermometers, Photometers, Neither (off topic), Hermit crabs have shells., Tiny fish eat plankton., Turtles confuse plastic bags for jellyfish.

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