2 summers ago I put 4 tadpoles in my pond and in not time they were frogs. The following spring I had 4 frog corpses laying at the bottom rotting up the water. So this past year i decided against tadpoles. I'd like to try again this season, but not if this will keep happening year after year. I would have thought the frogs would use their natural instincts and do what they need to survive, even if it means leaving the pond. But I guess I was wrong. Anyone else have this happen before? The frogs are just too fast to try and catch and put in a tank for the winter.