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
Beast (Beauty and the Beast) life to transport himself to Hollow Bastion, where Belle is being held captive with the other six Princesses of Heart. Upon arriving in Hollow Bastion, Beast is confronted by Riku, who challenges him to a duel and easily defeats him. Beast is saved at the last minute by Sora, Donald and Goofy, who are looking for Kairi. Allying himself with Sora, since Donald and Goofy have temporarily joined Riku, Beast fights the Heartless and protects Sora while they work their way into the Hollow Baston castle. Entering the castle, Beast, Sora, Donald and Goofy fight their way through until they