In 2019, scientists made a groundbreaking discovery in the depths of the Brazilian Amazon: the Mato Grosso titi monkey. But ...

The gray woolly monkey has a coarse, short, gray coat, for example, while the Peruvian yellow-tailed woolly monkey has longer, softer fur the color of dark chocolate with a distinctive yellow ...

Scientists think these outsize organs create an echo chamber that amplifies the monkey’s ... a coat of light brown fur that turns red around the head and shoulders and gray at the arms, legs ...

They usually have brown, gray, or black fur with large, hairless muzzles that ... As the largest member of the monkey family, the mandrill is larger than even the biggest baboon species.