Once nearing extinction, Brazil’s golden monkeys have rebounded from yellow fever, scientists say

There are now more golden lion tamarins bounding between branches in the Brazilian rainforest than at any time since efforts to save the species started in the 1970s, a new survey reveals.

Once on the brink of extinction, with only about 200 animals in the wild, the population has rebounded to around 4,800, according to a study released Tuesday by the Brazilian science and conservation nonprofit Golden Lion Tamarin Association.

“We are celebrating, but always keeping one eye on other threats, because life’s not easy,” said the nonprofit’s…