Mars Curiosity - Alien inscription

I want to see those things but the close up is too blurry for me to make anything out conclusively. Interesting rocks, no doubt but not clear enough.

can i claim there was an acient alien civilisation in my back garden?
it's got rock's in it.

Funny thing - if you look at picture in this thread there is another rock with sort of similar "scratches" to the left of the tracks.
And i assume that rock in OP is the one to the top of the track, yes?
www.abovetopsecret.com...
Maybe Curiosity scratched those as it drove by. Or maybe it is some kind of fossils .
I do not see how something else could hve scratched those rocks.