Strange Alien Worm on Mars
In this image from Curiosity Rover, Sol 1133, we can see what appears to resemble a worm slithering across the Martian landscape.
By enhancing the image, we get a little more detail, it has a few ridge lines going across it's body like you would see on an earth worm, looking at it closer, it could be some kind of lizard, in the video below i point out the location of where it's mouth, eye and leg are located, we can also see that it is possibly carrying something in it's mouth.
the object in it's mouth looks circular and flat with a round object in the center of it. you can download the image yourself and see if you can get better reults than i did, here is the original link to NASA's RAW Image.