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
Yellow-legged tinamou Yellow-legged tinamou The yellow-legged tinamou ("Crypturellus noctivagus") is a species of tinamou found in wooded and shrubby habitats in tropical and subtropical eastern Brazil. This superficially quail-like bird has a grey-brown plumage and two easily separated subspecies. It has declined due to human activities, and is therefore listed as Near Threatened by the IUCN. This species has two subspecies: The yellow-legged tinamou is approximately in length. Its upperparts are grey, its lower back and wings are barred black, its neck and upper breast are greyish, its lower breast is rufous and its belly is whitish. It has a blackish cap