The Ecuadorian capuchin, a Critically Endangered subspecies of the white-fronted capuchin (Cebus albifrons), has been discovered in four new locations according to a new study in mongabay.com’s open ...

Researchers found that New World monkeys can produce extreme yodeling-like sounds by rapidly switching between their vocal folds (for low tones) and specialized vocal membranes (for high tones), ...