White Gorgonian, Eunicella verrucosa, or broad sea fan, pink sea fan, warty gorgonian, is a species of colonia Gorgonian "soft coral" in the family Gorgoniidae. It is native to the north-eastern Atlantic Ocean and the western Mediterranean Sea.

Yellow Gorgonian, Eunicella cavolinii, commonly known as the yellow sea whip, is a species of colonial soft coral in the family Gorgoniidae. It is native to parts of the eastern Atlantic Ocean, Mediterranean Sea and Ionian Sea where it is a common species. Eunicella cavolinii is a much-branched soft coral growing to a height of about 50 cm. It is fan-shaped with the irregular, cylindrical branches largely growing in a single plane.

I filmed this sea Whip coral during an underwater excursion to Maldives. The Gorgonias are an important biological indicator because they are very sensitive to pollution and sea heating; moreover, inside them we find a remarkable biodiversity composed of invertebrates of every species and of fish that use the colony both as a refuge and as a place to lay eggs safely.

Simmetria in biologia è la distribuzione equilibrata di parti del corpo duplicati o forme all'interno del corpo di un organismo. In natura e biologia, la simmetria è sempre approssimata. La simmetria crea una classe di modelli in natura ...