This SEO-looking site does credit Nikolai Lamm, who's also posted the content on his personal site, with no further attribution for the photos: http://nickolay

This SEO-looking site does credit Nikolai Lamm, who's also posted the content on his personal site, with no further attribution for the photos: http://nickolaylamm.com/art-for-clients/what-do-cats-see/ http://nickolaylamm.com/art-for-clients/what-do-cats-see/ I was surprised to find that the "Art for Clients" tag on his site contains a lot of content that's gone heavily viral recently (especially "The Average Man" photos, which were on HN a few days ago): http://nickolaylamm.com/category/art-for-clients/ http://nickolaylamm.com/category/art-for-clients/ And all these professional news agencies, presumably with legal teams to back it up, attribute Nickolay Lamm as the source for all of those I checked. From his "About Me": > I blog for MyDeals.com, MyVoucherCodes.co.uk and StorageFront.com. Each blog post I make takes around 4 weeks to create. http://nickolaylamm.com/about-me-2/ http://nickolaylamm.com/about-me-2/ I smelled something fishy from the "mydeals.com" source from OP, and initially thought that the Daily Mail's attribution to that site was just sloppy and awful... but it all checks out. Huh.