New Delhi, Aug. 6 -- What is happening at Europe's Danube River? According to a CBS report, sunken World War II warships of the Nazis have brought a surprise. After prolonged summer drought and intense heatwave across Eastern Europe, water levels in the Danube River have dropped to near-record lows, revealing new sandbanks and dozens of shipwrecks along with Ice Age mammoth remains.

At least 20 German military vessels from the former Black Sea fleet are being reported to have resurfaced near the Serbian port town of Prahovo as the water recedes. Many of those ships, some believed to contain explosives, were deliberately scuttled by retreating German forces in September 1944 to prevent their capture by the advancing Soviet troops.

Accord...