Today is International Golden Lion Tamarin Day. The recovery of these small Brazilian monkeys - from 200 individuals in the wild in the 1960s to 3,700 in recent years - is one of the world’s most celebrated wildlife comeback stories thanks to the international efforts of a large team of committed partners. In 2018, the population dropped for the first time since the ‘60s as a wave of yellow fever that began in humans in 2016 unexpectedly started to kill the endangered tamarins, reducing the population by 32%. Now conservationists from Save the Golden Lion Tamarin, @associacaomicoleaodourado, and partners like @global_wildlife_conservation are hoping to vaccinate the monkeys, using their knowledge and experience from the past few decades to increase the population yet again and to continue to conserve and restore their iconic home in Brazil’s Atlantic Forest. Photo: @RussMittermeier, Global Wildlife Conservation