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 president, Luís Paulo Ferraz.
Golden lion tamarins are small monkeys with long tails and copper-colored fur that live in family groups led by a mated pair. Usually, they give birth annually to twins, which all family members help to raise by bringing them food and carrying them on their backs.
The monkeys, which live only in Brazil’s Atlantic Forest, are still considered endangered.
The population survey was conducted over roughly a year. Researchers went to …