Kingston Russell 2
Image by wickerman

I'd go no. Looks to be natural and picked due to its bovine characteristics. 12 years and hundreds if not thousands of stones on from my previous post on the topic.

It's a lizard, like Mr Icke said.

http://www.dailymail.co.uk/sciencetech/article-3982790/UFO-hunter-claims-spotted-lizard-Mars-images-Nasa-s-Curiosity-rover.html