Nature World News: Marine animal experts are investigating an abnormally high number of dolphins being found stranded on the shores of Virginia beaches. Already this year, the Virginia Aquarium's Stranding Response Team has responded to about 100 dolphin strandings, 44 of which were in July, mostly around the southern part of Chesapeake Bay. Dolphin strandings typically a peak in May. Statistics of Virginia dolphin strandings indicate that six or seven stranded dolphins is average for July. Now, less than one week...