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
Red-legged thrush Red-legged thrush The red-legged thrush ("Turdus plumbeus") is a species of bird in the family Turdidae. Native to the Caribbean, it is found in the Bahamas, Cayman Brac, Cuba, Dominica, the Dominican Republic, Haiti and Puerto Rico. It formerly occurred on the Swan Islands, Honduras. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, and heavily degraded former forest. This species may be considered the Caribbean counterpart of the American robin, as it has similar habits, including being a common visitor to gardens and lawns. This large thrush