Like Loch Ness in Scotland, the Shannon Estuary in Ireland has long been home to a fabled sea monster. Known as a Cathaigh ... with a twelve foot long neck and massive cone shaped hump.” ...

These sea monsters grew upwards of 40 feet (12 meters) long. About half that length was neck, a feature that allowed Styxosaurus to sneak up on schools of fish as it slowly cruised the shallow ...