Intersex fish found in the Susquehanna

Male smallmouth bass with female traits have turned up in the Susquehanna River, the second major Chesapeake Bay tributary where "intersex" fish have been detected, The Baltimore Sun reports.

More than 90 percent of adult male bass examined in the Susquehanna in the past year had immature egg cells in their testes, said Vicki Blazer, a fishery biologist with the U.S. Geological Survey. Blazer previously documented the phenomenon among fish in the Potomac River watershed.