Did you happen to walk by the Lincoln Memorial, Capitol Hill, or White House today and get a fright when you saw a polar bear walking around? Don’t worry, it wasn’t real.

Via a reader tip, Fox 5 reports that Greenpeace has taken responsibility for the polar bears that have been mistaken for suspicious packages around town over the last week. Indeed, if you go to the Greenpeace homepage, it turns out that not only was Greenpeace responsible, but they actually did it in collaboration with street artist Mark Jenkins — so both of our guesses were correct! Greenpeace has unveiled a collaborative art project with well-known…

Flickr user benmiller23 spotted this polar bear installation, which looks very similar to the one that a bomb squad tore apart after shutting down surrounding streets and a Metro station in Columbia Heights today, on the National Mall on Thursday, Sept. 11. It’s looking more and more like these bears are part of an elaborate campaign to raise awareness about the plight of polar bears amid global climate change. Another bear, spotted at what…