Knightro had the most correct answer. Google is a just search engine and does not own the copyright to the pictures...unless you get the images specifically from a Google application, such as Google Earth, Google Maps, Google Street View, etc.
However, all the images that you find on the internet belong to the website where you find them, and they are copyrighted. So if you try to print a picture and sell it, then YES, that is definitely copyright infringement. So for example, let's just say you do a search on Google for a website on "turtles." You find a picture of a sea turtle that you really like, and so you decide to print it and try to sell it. That would be copyright infringement. The picture does NOT belong to Google...but it does belong to whoever made the website about turtles. (Actually, it belongs to the person who took the PICTURE of the turtle). I hope that makes sense.
The only time where you can legally publish or re-distribute a picture is if the photographer specifically says that the picture is in the "public domain." For example, some pictures on Wikipedia are in the public domain.
I should also clear up a myth and misconception some people have about image copyrights. Some people will try to claim that you can't save a picture from the internet onto a computer, and they say that is "copyright infringement." That is NOT true at all. You CAN save an image from the internet for your own PERSONAL USE. In fact, your computer has to download the image files first in order for a web page to even be displayed. (ALL image files are saved to the "Tempoary Internet Files" folder, even pictures where the right mouse button has been disabled.) So by the mere fact of viewing a website, you HAVE already saved a copy. Try it...right click on the shortcut icon for Internet Explorer, and go to "Properties." Then go to "Settings" and then "View Files." You'll see a bunch of files, including .JPG image files. Those are all the pictures on websites you have viewed recently. And yes, you can copy those files to wherever you want on your computer. They're already on the hard drive.
What would be copyright infringement is if you tried to publish the picture without the owner's permission. Printing and selling copies of it, uploading the pictures to another website, etc.