An ancient ancestor to spiders was able to creep again, sort of, as a new video has recreated the walk of the 410-million-year-old beast. The arachnid's creepy gait was reconstructed based on paper-thin cross-sections of the creature's limbs fossilized in rock in Scotland. The fossils were found in the Rhynie Chert, a formation where silica-laden water bubbled up from volcanic hot springs, instantly petrifying lichen, plants and primitive insects in stunning detail. "Long before our ancestors came out of the sea, these early arachnids were top dog of the food chain," study co-author Russell Garwood, a paleontologist in the University of Manchester, said in a statement.
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