The rabbit's long ears, which can be more than 10 cm (4 in) long, are probably an adaptation for detecting predators. They have large, powerful hind legs. The two front paws have 5 toes, the extra called the dewclaw.
However, Moorish idol larvae spend a long time drifting through the open ocean before they mature, so regional populations donât remain isolated enough to develop particular traits. Because of its beauty and its identity as a quintessential reef fish, the Moorish idol is a very popular fish in the aquarium trade.
One of over 70 species of surgeonfish, the blue tang lives in coastal waters, coral reefs and inshore rocky or grassy areas between 6-131 feet deep. They can be found in waters from New York to Brazil and as far east as the remote Ascension Island.