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✉news EnvironmentOceans first seen 7 h ago, last 3 h ago, peak #11

Four Keystone Species That Keep Ecosystems Alive

Original: Keystone Species: Four Animals that Play a Huge Role in the Ecosystem

The New England Aquarium has published a feature explaining keystone species: animals whose presence holds entire ecosystems together, profiling four examples and the outsized roles they play. The piece highlights how removing such species can trigger cascading collapses, and why protecting them is central to conservation, particularly in ocean habitats where the aquarium focuses its work.

Why now: Conservation explainers about keystone species draw attention because they underline how a handful of animals can determine the health of whole ecosystems.

New England Aquarium

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