What if I were to tell you that your government lies a lot and hasn't been terribly forthcoming with the stuff that turns up in those rolling probe images coming back from Mars......... I mean, would that really shock anybody?
No government agency has the manpower to go through all of these images with fine combs, but the INTERNET does and going over those images has gotten to be a big hobby for a lot of people, several FaceBook groups dedicated to it. This image shows a little fox or weasel of some sort chewing on one of the wiring harness binding straps:
Basic NASA/JPL image:
Not sure if NASA realizes they have a problem...
Again the image is from NASA's own site. Caught by Mike Seguin on the Mars Alive FaceBook group.