Bolivian red howler

The Bolivian red howler (Alouatta sara) is a species of howler monkey, a New World monkey endemic to Bolivia. It lives in rain forests, including riverine and seasonally flooded forests. Like other howlers it has a muscular, prehensile tail that lets it grasp and swing from branches, and it is covered in reddish orange hair. Adult males are described as about 20.6 to 22.4 inches long and 13 to 17 pounds in weight, with females somewhat smaller. It feeds mostly on leaves, and also takes nuts, seeds, fruit and flowers. Troops hold one to three males and two to seven females, and the loud morning and evening howls of the males, audible for up to two miles, help neighbouring troops keep their territories apart. The article gives a pregnancy of about six months with usually a single young, and a lifespan of about 20 years, with the jaguar named as a predator.