Scientists warn that a proposed expansion of Port Everglades could cause unprecedented damage to corals in the U.S., including some of the only remaining endangered staghorn corals that survived a record-breaking heat wave.By Teresa TomassoniBeneath the surface of one of South Florida’s busiest maritime hubs, Port Everglades, scientists found 10 million corals thriving in and around the main channel traversed daily by cargo and cruise ships, now threatened by a major federal dredging project.Â