Grizzler is able to take these pictures thanks to Nikon, who has developed a new technology called "Heartography." Essentially, Heartography is a heart rate monitor and camera in one. The monitor notifies the camera when a photographer is feeling excitement (or fear), and then the camera snaps a picture of that moment.
This new concept is perfect for dogs like Grizzler, who get excited about everything all day long. In fact, Grizzler has already tested it out - and the results are pretty fantastic.
A video crew spent a day with Grizzler as he went to his favorite places, and captured pictures of all the things that Grizzler loves - of which there are A LOT.
For example, being outside excites Grizzler.