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) old man named Maurice who accidentally stumbles upon the castle, being allowed inside by the servants for shelter. However, the Beast detains Maurice in the tower as a prisoner for trespassing. Maurice's horse returns back to the village, and then takes Maurice's daughter Belle back to the castle. In the tower Belle confronts Beast and pleads with him to let her father go, offering herself as a prisoner instead, to which the Beast agrees in return for her promise never to leave. Being prodded by his servants into believing that she is the key to breaking the spell, the Beast