The Unique Underwater Ecosystems of Submarine Mountains
In The Unique Underwater Ecosystems of Submarine Mountains, narrator Sir David Attenborough goes deep beneath the ocean surface, where volcanic eruptions have built enormous submarine mountains — some taller than Mount Everest when measured from the seafloor. These underwater peaks create unique ecosystems, as powerful ocean currents sweep nutrients up their slopes. This influx of nutrients supports vibrant marine communities, including soft corals, whip corals, and giant sponges that filter nourishment from the water. Though these ecosystems thrive in complete darkness, they rely entirely on the energy transported by deep-sea currents. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
Lesson Express
Q: How do submarine mountains form?
A: They are created by volcanic eruptions on the seafloor, which build up over time to form massive underwater peaks.
Q: Why do so many marine creatures gather around these mountains?
A: The mountains help channel ocean currents, bringing nutrients that support a wide variety of marine life.
Q: How do soft corals and sponges survive without sunlight?
A: Unlike shallow-water corals, deep-sea corals and sponges do not rely on photosynthesis. Instead, they filter nutrients carried by ocean currents.
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