U.S. Geological Survey
Scientists from the University of Delaware and the U.S. Geological Survey are conducting a census of native bees in Maryland and Delaware.
A contest to give names to six tributaries of the Monocacy River has drawn more than two dozen entries.
The U.S. Geological Survey says reservoirs near the mouth of the Susquehanna are filling with sediment and storms are now washing more pollution into the Chesapeake Bay.
A federal scientist says the Conowingo Dam in northeastern Maryland is not trapping as much sediment and nutrient pollution as it has in years past — possibly endangering the Chesapeake Bay.
Federal officials say a 5.8-magnitude earthquake in the eastern U.S. caused the ground to shake more than a Virginia nuclear plant was designed to withstand.
The U.S. Geological Survey says rains from Hurricane Irene pushed rivers to record levels in Maryland, Delaware and eight other states.
The Energy Department says it will reduce its estimate of undiscovered natural gas in New York, Pennsylvania and other states following a new report by the U.S. Geological Survey.
Chessie, the wandering Florida manatee, is back in the Chesapeake.