(ABC News) Intersex fish have been found in the Potomac River in Washington, D.C., where scientists have discovered immature eggs in the sex organs of male smallmouth and largemouth bass.
"It indicates a problem we need to be concerned about," says Vicki Blazer, the fish pathologist at the U.S. Geological Survey, who has studied the problem since 2003, after a large fish kill in the south branch of the Potomac. Blazer first noticed the intersex abnormality in 2004. "We need to try to figure out what's going on."
- thanks to Helen Terry