Original NASA picture can be found on their site here.
The image, which was taken near the Gusev crater, appears to show a gorilla or bear type creature.
This object was discovered a few years ago but Paranormal Crucible worked on the image and brought out more details.
It is well known NASA cover-up photos and personally I think NASA's artist had a creative day and has been airbrushing out an anomalous object.
In 2013, Donna Hare a former NASA employee while working for NASA contractor, Philco Ford came forward and testified that she was shown a photo of a picture with a distinct UFO. Her colleague explained that it was his job to airbrush such evidence of UFOs out of photographs before they were released to the public.