Damsels In Distress Chemically Call For Help

Life as a damselfish is hard. These small species are common on tropical reefs worldwide, eating small tasty plankton and nipping at other fish. They’re known for their attitude and their beauty, and are often found in stunning schools that cluster around coral heads. But while they’re abundant and vibrant, what they lack are good defenses — no spines, no toxins. Indeed, they are the perfect morsel for other fish-eating fish, and they know it. The moment a predator is detected, they’ll dart

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