Enviros say more than 10,000 endangered crocodiles in Paraguay are dying because a major river that irrigated their swamplands is now being diverted to provide water for agriculture in Argentina. The crocodiles, known as Yacares, are starving to death or being encased in mud as the swamps dry up. Their numbers had been climbing before the Pilcomayo River was diverted in 1996.

source:  BBC News, Tom Gibb, 14 Aug 2001