Animals with Cameras, A Nature Miniseries S01E03 - Brown Bears, Mantas and Sheep Dogs

In the heart of the Atlantic, Gordon joins a team looking to discover why huge numbers of devil rays, fish with 'wings' nearly four metres across, gather every summer near the Azores archipelago. In northeast Turkey cameras are carried by brown bears as part of a study trying to understand why so many bears survive in a small patch of forest. Meanwhile, in southern France, on-board cameras help scientists trying to prove that guard dogs can help protect sheep flocks from wolf attacks.