AP News reports that ocean swells and shifting coastal sands exposed ancient Hawaiian petroglyphs on a beach in Oahu. The carvings were first seen almost a decade ago near a U.S. Army base in Waianae, an hour outside Honolulu, but were quickly swallowed back up again by the sand. Although sections of the artwork have occasionally become visible, said U.S. Army Garrison Hawaii archaeologist Laura Gilda, this is the first time the entire panel has been exposed. The scene consists of 26 petroglyphs -- 18 of which depict anthropomorphic stick figures -- carved across a 115-foot stretch of sandstone. Experts...