Photographer Robb Kendrick and I worked on a National Geographic story about bringing extinct species back to life. It remains one of my all-time favorites. Robb makes tintypes, the real ones, with an 1800s-era camera and lens and a whole bevy of toxic chemicals. Our goal for that story was to make a varied array of creatures, taxidermied and otherwise, look as alive as possible. In one case we were able to put a life-size saber-toothed cat puppet in what would’ve been its natural environment at the La Brea Tar Pits. I decided to channel Robb and try the same thing, only I was going to use a toy Stegosaurus I’d picked up at the museum’s gift shop and an iPhone with a nifty tintype app.