Published reports of dolphin sightings date back into the 1800s. But as pollution degraded the Chesapeake’s water quality through the 20th century, they became more rare.
By Scott Dance, Washington Post: Local
Fri, 05/18/2018 - 3:06pm
Published reports of dolphin sightings date back into the 1800s. But as pollution degraded the Chesapeake’s water quality through the 20th century, they became more rare.