It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
Big brown bear animal mammal ursus middendorffi. en br Image title Big brown bear animal mammal ursus middendorffi Image from Public domain images website publicdomainimage html publicdomainimage Menke Dave Fish and Wildlife Service Not given This file is in public domain not copyrighted no rights reserved free for any use
Page 2017 Free-images.com. All images are Public Domain