Golden lion tamarin

"Known for their distinctive, lion-like manes and gold-orange pelage, the golden lion tamarin, or Leontopithecus rosalia, is a primate endemic to the Atlantic Forest biome that once stretched uninterrupted for hundreds of miles along Brazil’s eastern coast, but which has since been reduced to only patches. By the 1980s, L. rosalia was critically endangered due to habitat loss and extremely high levels of poaching. By then, the population was down to just a few hundred individuals in isolated forest fragments scattered around the São João river basin in Rio de Janeiro state. However, a hugely successful campaign of intensively focused conservation action, including the introduction of zoo-born tamarins to wild populations, raised that number to 3,700 by 2014." Although the Golden lion tamarin has made major recoveries, the species is still threatened by predation, illegal logging, poaching, deforestation, and disease, most recently yellow fever.