Not to be confused with the araneomorph spiders. Opiliones are found in ancient fossils, relatively unchanged in apparent body makeup for thousands of thousands of generations. There are of course inestimable species changing or evolving along micro-level environmental constraints. No, evidence hasn't found sea bottom that aliens are targeting these arachnids. Although a sampling of data at least is arriving about its macrobehavior. A study conducted a care versus a no care model for parent sexes looking after offspring. It turned out female care came from no parental care, and either paternal or maternal guarding of eggs was through female care, suggesting a complex line of negligence and reemergence. Drop any conjecture...