Curiosity Sol 40, Mast Cam Picture

who says that Martians have bone? They are just as likely to have exoskeletons or cartillage skeletons.

It is amazing how we always assume "they" are like "us" when it is highly likely that they come from somewhere which does NOT have carbon as a basic building-block of their life.

Certainly, the photo evidence is that they have mining settlements on the asteroids and so can survive in far more inhospitable places than we can.

If we zoom into this photograph (the "full res image") we can see that there is no definition in the picture at all, and there is a orangey-brown covering over the whole thing. In my opinion, for what it';s worth, it is highly likely that the whole thing is made-up and fabricated. Look at the patterns on the ground in the dust and on the larger rock. These patterns have been added after the image has been taken. I dont see why you cannot see this?