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Dive through the zones of the ocean to the deep ocean bottom where many strange species live, and there are many yet to be discovered. Explore them in the Deep Ocean Exploration section.
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ROV Exploring the Deep Ocean

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Alvin, a human occupied vehicle (HOV), returns to the ship after a dive.
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Alvin, Gulf of Alaska Seamount Expedition

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The crew aboard Oceana’s research vessel Ranger were surprised to discover large colonies of deep-sea white coral in the Western Mediterranean Sea.
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Deep Coral Sighted in Mediterranean

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Drifters deployed into the Gulf of Mexico sent location information back to scientists through a GPS satellite. Some of the 5.7 million data points about the drifters locations are seen in this map of the Gulf.
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Tracking CARTHE Drifters

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NOAA’s New Millennium Observatory was set up to study geologic, chemical, and biologic interactions along the mid-ocean ridge system. Here, a remotely operated vehicle (ROPOS) recovers a volcano monitor in the Juan de Fuca Ridge in the Pacific, west of Oregon.
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Studying the Mid-Ocean Ridge

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The autonomous underwater vehicle (AUV) Sentry was used in the Gulf of Mexico directly after the Deepwater Horizon oil spill in 2010 to map oil plumes and to search for hard bottom on the sea floor.
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AUV Sentry

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A SCUBA diver in taking photographs in the Baltic Sea.
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An Underwater Photographer Battles the Baltic's Cold Waters

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A yellow remotely operated underwater vehicle, or ROV, at the surface of the water.
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An ROV Explores the Baltic Sea

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Cancer cells treated with discodermolide, a chemical from a sponge found on deep-sea coral reefs.
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Treated Cancer Cells

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The robotic arm of the Jason, a Remotely Operated Vehicle (ROV), collects several stalks of black coral from the seafloor.
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ROV Collects Black Corals

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The Autonomous Underwater Vehicle (AUV) SeaBed is about to be deployed.
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Autonomous Underwater Vehicle

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A robotic arm on the Johnson-Sea-Link submersible retrieves Galatheid crabs for research. In the background is a species of the deep-sea coral Lophelia.
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Collecting Deep-Sea Crabs

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