"I was looking over Curiosity Rovers recent photos and found these two photos with a shaded skin in them. Its nice there are two. It make more evidence. The shaded skin is being looked at by a micro camera designed to see grains of sand and tiny details that a normal camera would of course over look. The images show a skin of some kind of tiny organism...insect size. At the bottom of the cocoon, there is an opening where the tiny creature crawled out. This cocoon looks to be about 2-3mm in length, but that is a best guess.
A similar cocoon was found a while back and was found in a color photo. This may be the same creature, because the photos was taken in 2012, but sent to NASA on 2014. "