Scyphozoa

The Scyphozoa are an exclusively marine class of the phylum Cnidaria, sometimes referred to as the "true jellyfish" (or sea jellies - as they are not, in fact, fish).

The class name Scyphozoa comes from the Greek word skyphos (σκύφος), denoting a kind of drinking cup and alluding to the cup shape of the organism.

Scyphozoans have existed, in geological time, from the Ediacaran period to the present.

Biology

Most species of Scyphozoa have two life history phases, including the planktonic medusa or jellyfish form, which is most evident in the warm summer months, and an inconspicuous, but longer-lived, bottom-dwelling polyp, which seasonally gives rise to new medusae. Most of the large, often colorful, and conspicuous jellyfish found in coastal waters throughout the world are Scyphozoa. They typically range from 2 to 40 cm (0.79 to 15.75 in) in diameter, but the largest species, Cyanea capillata can reach 2 metres (6.6 ft) across. Scyphomedusae are found throughout the world's oceans, from the surface to great depths; no Scyphozoa occur in freshwater (or on land).

Code Lyoko

Code Lyoko is a French animated television series created by Thomas Romain and Tania Palumbo and produced by Moonscoop. The series centers on a group of five teenagers who travel to the virtual world of Lyoko to battle against a malignant artificial intelligence named X.A.N.A. who threatens Earth. The series is presented in 2D hand-drawn animation and CGI.

The series began its first run with ninety-five episodes on 3 September 2003, on France's France 3, and ended its run on 10 November 2007. It aired in the United States on 19 April 2004, for the first time on Cartoon Network. The show later spawned a new and improved live-action/CGI series Code Lyoko: Evolution, which began at the end of 2012. It kept the 3D computer animation style while it focused on Lyoko, the digital sea and the Cortex, while live-action for the real world.

Between 2004 and 2007, Code Lyoko aired every day on Cartoon Network (Miguzi) at 4 PM Eastern Standard Time, sometimes showing two episodes consecutively, in the cases of season finales.