
Red Howler Monkey seen in the Amazon
Diurnal species usually seen in the tops of trees. Sometimes also called rain monkey, snoring monkey or weeping monkey. They use their tails in prehensile manner as seen here.
Unusually they will urinate and defecate as a defense mechanism against predators........that would certanly put me off my meal.
(See https://www.sussex.ac.uk/webteam/gateway/file.php?name=primates-ingles-baja.pdf&site=201 for more info about this and other monkeys in Ecuador)

The red howler is a South American species of howler monkey, a type of New World monkey, found in the western Amazon Basin in Venezuela, Colombia, Ecuador, Peru and Brazil. The population in the Santa Cruz Department in Bolivia was split off as a separate species, the Bolivian red howler, in 1986, and more recently, splitting off the population in northeastern South America and Trinidad as the Guyanan red howler has been recommended. All howler monkeys belong to the family Atelidae and the infraorder.. more
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