This action image captures the male monkey mid-howl. The lateral gaze at moment of vocalization suggests he is warning off a rival. The howler monkey's howl is usually heard at dawn and at dusk. The sound can cary as far as a half of a mile. This male, with his full coat and dark beard, looks to be in his prime. Hard to imagine that anyone would mess with him.
This action image captures the male monkey mid-howl. The lateral gaze at moment of vocalization suggests he is warning off a rival. The howler monkey's howl is usually heard at dawn and at dusk. The sound can cary as far as a half of a mile. This male, with his full coat and dark beard, looks to be in his prime. Hard to imagine that anyone would mess with him.