I've got a very weak signal http://fittor.fun/pornorevista/ hairycorner “There’s a big question looming as to whether dolphins use whistles in the way we use words,” similar to how “we can say ‘chair’ and visualize ‘chair’ without having to see one at the same time,” Sayigh said. While more research needs to be done to conclude whether this occurs in dolphins, the PNAS study is “a step along the way,” she said.