As the summer comes to an end a disturbing sign of environmental imbalance is washing up on many of the world's beaches: a jellyfish invasion.
Swarms of small, not entirely friendly creatures, are forcing beach closings from the Mediterranean to Australia.
"There were beautiful summer days when you couldn't swim," said Amy Dolan who was enjoying a day at the beach in Falmouth, Mass. "You wouldn't even want to go in the water. You wouldn't want your kids to go in the water. … It ruined the...Full Story