Nudibranchs are the most colorful creatures on earth. and as such, became divers little obsession. They are hard to find but the satisfaction is great! the nudibranchs amazing colors, which are different in every one of the 3000 plus species, indicate poisonous nature. Although these magnificent creatures dont make their own poison, but gather (steal) it from the poisoner coral they feed on. Dive slowly and look carefully and you will often spot these colorful little critters amongst the soft corals.
The first time you come across one of these colorful small characters you too will be smitten with their beauty
In the course of evolution, sea slugs have lost their shell because they have developed other defense mechanisms. Their anatomy may resemble the texture and color of the surrounding plants, allowing them to camouflage (cryptic behavior). Others, as seen especially well on Chromodorids, have an intense and bright coloring, which warns that they are distasteful or poisonous.
A nudibranch (pronounced) nudibrank is a member of of soft-bodied, shell-less marine gastropod mollusks, which are noted for their often extraordinary colors and striking forms. The word nudibranchcomes from the Latin nudus, naked, and the Greek brankhia, gills. Nudibranchs are often casually called sea slugs, a non-scientific term which has led some people to assume that every sea slug is a nudibranch.
The nudibranchs posses both male and female organs. When mating, they fertilize each other and bothe will lay a beutifull round pattern of eggs that you can sometime spot on the reef. this is a good indication that there is a nudibranch around.
Nudibranchs are carnivorous. Some feed on sponges, others on hydroids, others on bryozoans, and some are cannibals, eating other sea slugs, or, on some occasions, members of their own species. There is also a group that feeds on and barnacles. They even sometimes feed on anemones.