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PHYSorg
Jan 17, 2018, 2:24 pm116 ptsThink of them as extra-large parasites. A small group of fishes—possibly the world's cleverest carnivorous grazers—feeds on the scales of other fish in the tropics. The different species' approach differs: some ram their blunt noses into the sides of other fish to prey upon sloughed-off scales, while others…
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