Huge Sponges Are Eating an Extinct Arctic Ecosystem

Thousands of years ago, hydrothermal vents fed worms deep below the ice. Scientists have found 300-year-old sponges feeding on the worms’ fossilized remains.

Huge Sponges Are Eating an Extinct Arctic Ecosystem
Thousands of years ago, hydrothermal vents fed worms deep below the ice. Scientists have found 300-year-old sponges feeding on the worms’ fossilized remains.
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