Natures wonders: 911 fish (Introduction)
Corals can call fish to eat damaging seaweed. The fish are protected and have plenty to eat:--http://phys.org/news/2012-11-bodyguard-fish-corals-toxic-seaweed.html
Corals can call fish to eat damaging seaweed. The fish are protected and have plenty to eat:--http://phys.org/news/2012-11-bodyguard-fish-corals-toxic-seaweed.html
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