A dog named Grizzler became a pioneer "pho-dog-rapher" when Nikon strapped a camera in a special case to his chest. The camera is triggered when his heart rate rises.
Grizzler's photos include images of other dogs, people's feet and cats that aren't happy to see him.
Grizzler's interests are varied, ranging from other dogs to cats to anything that is potentially edible. This van full of oil and canned beans ramped up his excitement level, triggering his chest-worn Nikon camera to take a photo.
This cat doesn't seem thrilled to see Grizzler the dog, but Grizzler must have been excited to see the cat, since his heart rate triggered the taking of the photo.
A tank of crabs caught the eye and raised the heart rate of camera-toting dog Grizzler.
Many of Grizzler's photos involve other animals. This dog seems equally happy to see Grizzler.
This bowl of hard food caught the attention of Grizzler, a dog wearing a camera triggered by his heart rate.
This artsy image was also taken by the Heartography system, triggered when the dog's heart-rate rises.
Other dogs figure prominently.
Grizzler found this furry friend of great interest and created a charming portrait photo in the process.