Alien Creature Caught In NASA Photo By Curiosity Rover, Lizard Or Rodent

This appears to be the original image from MSSS (Malin Space Science Systems, the company who built and operates the mastcam for MSL). I don't believe it is a lizard. But sometimes rocks can resemble life just like clouds look like faces sometimes.

Eventually MSSS will drop the mastcam RAW files to the public via NASA PDS service and the MSL Analyst Notebook. It would be interesting to see if this still looks like a lizard at full resolution uncompressed. It would also be possible to look for another perspective. Currently all that is available public are the hazard and navigation cameras operated by JPL. I don't know how to convert the Mastcam file numbers into sols for further investigation.