Photo 113838, (c) Tigran Tadevosyan, some rights reserved (CC BY), uploaded by Tigran Tadevosyan

Attribution © Tigran Tadevosyan some rights reserved Uploaded by ttadevosyan Source iNaturalist Associated observations Photos / Sounds What American Beaver (Castor canadensis) Observer ttadevosyan Date April 21, 2012 05:30 PM EDT Place Walden Pond, Concord, MA (Google, OSM) Date Added May 10, 2012 03:34 AM ChST Description Artifact. Cut tree 4 IDs Research Grade View Sizes small medium large original