Juvenile mantled howler monkey (Alouatta palliata) in Pacific coast forest, known for their loud call, Esperanza, Nosara, Guanacaste, Costa Rica

juvenile monkey alouatta palliata pacific coast forest costa rica esperanza nosara guanacaste wildlife primate nature tree foliage resting calls sound habitat animal conservation serene green biodiversity tropical environment behavior young climbing hanging ecosystem mammals watching endangered species hotspot rainforest natural family canopy exotic fauna arboreal playful curious monster