Decades-old Cans of Salmon Reveal Changes in Ocean Health
Researchers used tinned fish to reconstruct parasitic population change, giving new meaning to the phrase “opening a can of worms”
![Decades-old Cans of Salmon Reveal Changes in Ocean Health](https://static.scientificamerican.com/dam/m/2eed84326b5c84f4/original/JR0TG9.jpg?w=1200)
Researchers used tinned fish to reconstruct parasitic population change, giving new meaning to the phrase “opening a can of worms”
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