Photo 17203795, (c) National Aquarium, some rights reserved (CC BY-NC), uploaded by National Aquarium

Attribution © National Aquarium some rights reserved Uploaded by nationalaquarium Source iNaturalist Associated observations Photos / Sounds What Northern Black Racer (Coluber constrictor ssp. constrictor) Observer nationalaquarium Date April 28, 2018 03:55 PM ADT Place Eldersburg, MD, USA (Google, OSM) Date Added May 1, 2018 04:20 PM EDT Description Photo by Jack Cover 5 IDs Research Grade View Sizes small medium large original