Happy Earth Day everyone!

As expected, most of the search engines have special logos for the day. Google and Yahoo’s logos are animated, Google has a JPG that rotates between images (like an animated GIF but not) to show the evolution of the growth. Yahoo has a nice animated logo, Bing and Ask.com have really nice background themes and even Sogou has a special logo.

Google’s logo in stages (warning, a lot of scrolling needed) but before, here is a video of it in action:

This logo was actual photos shot by a Google Doodler over time. Google’s Marissa Mayer explained on Twitter:

Yahoo’s animated logo:

Sogou logo:

Bing Logo:

Ask.com Logo:

For the past year’s Earth Day logos, see 2011 Earth Day, 2010 Earth Day, <a href="2009, 2008, 2007, 2006, 2005 and 2004.

Forum discussion at Google Web Search Help.