https://opr.news/467fc872260403en_us?link=1&client=mini
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However, this strategy proved a double-edged sword. The dense capelin shoal attracted the attention of nearby cod, which quickly organized into their own coordinated attack. In a matter of hours, 2.5 million cod consumed nearly half the capelin shoal.
The event, though dramatic, is unlikely to devastate the capelin population, as this particular shoal represented a mere fraction — about 0.1% — of the species .."
