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Pyrosomes invade eastern Pacific from California to Alaska

Millions of translucent, sea cucumber-shaped pyrosomes have "invaded" northern waters. Local scientists know little about them and say it's unclear how long the tropical creatures will survive or what impact they might have on the local food chain.
Millions of translucent, sea cucumber-shaped pyrosomes have "invaded" northern waters. Local scientists know little about them and say it's unclear how long the tropical creatures will survive or what impact they might have on the local food chain. 7:38