Close up shot of a sad looking Black Howler monkey resting on a tree and staring at camera

alouatta caraya howler black male sad eyes tree lonely expressive monkey sadness animal baboon conservation ecosystem forest habitat jungle mammal nature primate rainforest tropical south american blackandgold alouatta looking at camera loneliness depression zoo howl rest ancestor concept body language emotion nonverbal communication unspoken portrait fur shallow focus locked off static nobody no people outdoors close up closeup day