By Sammy Fretwell, Adam Wagner and Anita Lee for McClatchy News and The Raleigh News and Observer, with support fromthe Pulitzer Center on Crisis Reporting.Broadcast version by Nadia Ramlagan for North Carolina News Service reporting for the Raleigh News and Observer-Public News Service Collaboration Fins surfaced in the tidal creek, drawing Matt Wright s attention away from the boat in the growing dusk. The 48-year-old Illinois resident was on his first tour of a salt marsh when dolphins appeared around the vessel, gently swimming through the estuary as shadows advanced across the tideland. Brilliant green spartina grass stood in the marsh mud, contrasting sharply with the dark water. .