I think if they pass the roach around a few more times they’ll come up with even more ideas.
IMHO: The FRONT end has possibilities of being equine, except for the lack of the distinguishing equine jaw line. The rear end lacks the roundedness of an equine hip and croup. The whole thing is probably merely a serendipitous result of erosion! Akin to someone imagining they see a likeness of Christ or the Virgin Mary in a frijole.
Rainy Day Women — that does fit, considering the climate.