Ключевые слова: alouatta, animal, ape, barbatusalouatta, behaviour, black howler, blackandgold howler monkey, brazil, carayaalouatta, climbing, howler monkey, howling monkey, invertebrate, mato grosso, monkey black, nature, new world monkey, nigeralouttaaloutta, pantanal wetlands, pattern, primate, south america, the pantanal, the pantanal south america, vocalization, wildlife,