Nikon has a new Canine Camera, so to speak..
It works by using a Heartography heart monitor which is strapped around your dog’s neck, with the camera attached to his/her chest with a harness. Bluetooth ties the two together, and whenever your pooch’s heart rate goes up (a signal that he’s either excited, or afraid..) the camera snaps a picture!
So now, you can clearly see what your dog likes, or, dislikes.
Check out Grizzler, who tested the system, which doesn’t seem available for sale.. yet.