There is the riddle of the Bermuda Triangle. The answer, revealed on Tuesday in a journal published by Britain’s prestigious Royal Society, is that sheepdogs cleverly follow a simple rulebook. Researchers fitted highly accurate GPS tracking devices into backpacks that were then placed on a trained Australian Kelpie sheepdog and on a flock of 46 female merino sheep in a five-hectare (12-acre) field. “It basically sees white, fluffy things in front of it,” said Andrew King of Swansea University in Wales.

There is the riddle of the Bermuda Triangle. The answer, revealed on Tuesday in a journal published by Britain’s prestigious Royal Society, is that sheepdogs cleverly follow a simple rulebook. Researchers fitted highly accurate GPS tracking devices into backpacks that were then placed on a trained Australian Kelpie sheepdog and on a flock of 46 female merino sheep in a five-hectare (12-acre) field. “It basically sees white, fluffy things in front of it,” said Andrew King of Swansea University in Wales.