Black howler monkey Smithsonian's National Zoo and Conservation

Always free of charge, the Smithsonian’s National Zoo is one of Washington D.C.’s, and the Smithsonian’s, most popular tourist destinations, with more than 2 million visitors from all over the world each year. The Zoo instills a lifelong commitment to conservation through engaging experiences with animals and the people working to save them.

Howler monkey - New World Encyclopedia

Happy Howlerween – Learn About our Howler Monkeys - The Houston Zoo

Omaha's Henry Doorly Zoo - Page 39 - ZooChat

Black howler monkey Smithsonian's National Zoo and Conservation Biology Institute

Southern Black Howler Monkey

Red howler monkey – Wisconsin National Primate Research Center – UW–Madison

The National Zoo Welcomes a Baby Howler Monkey

Southern Black Howler Monkey - Roger Williams Park Zoo

Smithsonian National Zoo Welcomes a Baby Black Howler Monkey - ZooBorns

National Zoo mourns death of beloved howler monkey Reuben

Eyes and Ears on the Rainforest, Smithsonian Voices

Black Howler Monkey

Black Howler Monkey