The DepthQuest cast
Each friend shows you one idea by how they act. Meet them all and see how the ideas fit together.
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Reef Sunlit zone — coral + photosynthesis-zone biodiversity -
Drift Twilight zone — bioluminescent + migratory species -
Press Midnight zone — pressure + cold + giant-squid scale -
Smoke Abyss zone — hydrothermal vents + chemosynthesis -
Trench Hadal zone — deepest trenches + extreme-adaptation -
Cling Intertidal zone — the strip of shore underwater at high tide and open air at low; life that clings between the tides -
Drizzle Marine snow — the constant gentle fall of food from the sunlit top to the dark deep (the biological pump) -
Gyre Ocean currents — the great moving conveyor carrying water, heat, and life in slow giant loops -
Neap Tides — the moon and sun pull the whole ocean; twice a day the sea rises and falls -
Sonar Sound in the sea — light dies fast underwater but sound travels far; send a click and read the echo