This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Gentle giants of the sea by klepas. hires rendered verison of Gentle giants of the sea by klepas svg as svg does not render correctly in Commons deviantart Simon Pascal Klein Released as public domain Image Gentle giants of the sea by klepas svg Inkscape SVG version Image Blue Whale population Pengo svg Just the graph Simon