The Parecis Plateau is home to a new species of titi monkey with grey, red and white fur. It was known to local people, but scientists overlooked it for a century
Source:
https://www.newscientist.com/article/2228395-monkeys-hiding-on-a-plateau-in-the-amazon-turn-out-to-be-new-species/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home