Mars Rat?

 Fox News is reporting that the Curiosity rover has taken photos of a possible 'Mars rat.' Some believe the image is proof of life on Mars, which as also been recently proven to have water. However, many experts believe the photo is actually that of a rock, which looks similar to a rat.

Here's a link to the full story:
http://www.foxnews.com/science/2013/05/29/mars-rat-spied-by-nasa-curiosity-rover/