A black dog standing on top of a cement wall. Dog canine animals.
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This image is from Pixabay and was published prior to July 2017 under the Creative Commons CC0 1.0 Universal Public Domain Dedication license https://web.archive.org/web/20161229043156/https://pixabay.com/en/service/terms/ . In July 2017, Pixabay switched the old sitewide license for all uploads from Creative Commons CC0 to a custom license arrangement https://web.archive.org/web/20170727004812/https://pixabay.com/en/service/terms/ that prohibits mass downloads and does not fully meet the Creative Commons CC0 1.0 Universal Public Domain Dedication license terms.