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.
By Dr. Becker Betta fish, also known as Siamese fighting fish, are native to Thailand, Vietnam, Cambodia, and Laos. In the wild, their colors are quite drab, except when they get agitated. The betta fish popular in aquariums, however, have been bred to display vibrant red, green, and royal blue colors. This, along with their elaborate fins, makes them extremely popular with hobbyists. They're second only to goldfish in home aquariums.