Puma and Guanaco, Torres Del Paine National Park, ChileThis puma was moving stealthily below a ridge, out of sight of the guanaco up on the hill. Eventually the guanaco caught wind of the puma and made a dash for it in the other direction. The puma, unfazed, continued on her way, as she had already made a kill and was on her way back to it for dinner. Pumas, however, are opportunistic hunters and had the guanaco been completely fooled, there would most likely have been an attempt at a second kill.
Nikon D500 with Nikkor 200-400mm lens (at 220mm) ISO 800, f/4 at 1/500th of a second