Photo 41764859, (c) Siddarth Machado, some rights reserved (CC BY), uploaded by Siddarth Machado

Attribution © Siddarth Machado some rights reserved Uploaded by siddarthmachado Source iNaturalist Associated observations Photos / Sounds What Yucatán Black Howler Monkey (Alouatta pigra) Observer siddarthmachado Date December 24, 2018 11:17 PM EST Place Calakmul Municipality, Campeche, Mexico (Google, OSM) Date Added June 12, 2019 04:25 PM EDT 3 IDs Research Grade View Sizes small medium large original Copyright