Giant River Otters, Pantanal, BrazilLooks like I caught these two giant river otters in the middle of some sort of illicit activity. In reality, they were simply grooming each other while stopping for a moment to watch our boat float past. Photographed along the banks of one of the many rivers of the Pantanal in Brazil. Nikon D300 with Nikkor 200-400mm lens (at 360mm) ISO 800, f/4 at 1/200th of a second.