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Gill – a very handsome fish

23 May 2014 by Alyster

A black, white and yellow fish

Moorish Idol fish. Image courtesy of Brocken Inaglory on Wikimedia.

The Moorish Idol (Zanclus cornutus) is a very handsome fish in my opinion. They elegantly glide through the water with their elongated dorsal fin trailing behind them. It’s believed this extended fin is to show off to potential partners about how attractive they are. If they have a short dorsal fin, which does happen as it lures some species of fish to nip at it, the fish will be seen as weaker than those with super long trailing fins, who were able to avoid being nibbled.  Read more…