Sunday, May 3, 2015

24. Which fish runs a cleaning service?


SMALL FISH, CALLED CLEANER WRASSE, feed on parasites that infest larger fish. The big fish welcome this cleaning service, so do not harm the wrasse, even when it swims right inside a big fish’s mouth to clean it. Sometimes queues of fish form at the wrasse’s cleaning station, patiently waiting their turn for a “wash and brush-up.”

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