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A marine biologist studying the rise and fall of fish populations worldwide recently made a counterintuitive discovery: ocean species that grow quickly and reproduce frequently, such as sardines, anchovies and flounder, are more likely to experience dramatic plunges in population than larger, slower growing fish such as sharks or tuna. Why is this counterintuitive? Because for life on land, the situation is in stark contrast. [Source: Rutgers University]
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