Zebrafish their larval stages. In 2011, the British Heart Foundation ran an advertising campaign publicising its intention to study the applicability of this ability to humans, stating that it aimed to raise £50 million in research funding. Zebrafish have also been found to regenerate photoreceptor cells and retinal neurons following injury, which has been shown to be mediated by the dedifferentiation and proliferation of Müller glia. Researchers frequently amputate the dorsal and ventral tail fins and analyze their regrowth to test for mutations. It has been found that histone demethylation occurs at the site of the amputation, switching the zebrafish's cells
Coreoleuciscus splendidus It is often used for decorative purposes; feeding it sources of carotenoids, specifically spirulina or paprika, has been observed to improve the colour definition of its skin and fins. The 1999 South Korean film "Shiri" was named after "C. splendidus"; the fish appears prominently in tanks in the offices of the main characters, and one of the film's primary antagonists has a monologue which discusses the fish and the effect the division of Korea has had on it. Coreoleuciscus splendidus Coreoleuciscus splendidus, also known as the swiri or Korean splendid dace, is a species of fish from the cyprinid family