White Tufted-Ear Marmoset, Piaui State, BrazilI photographed this very small primate in Piaui State, Brazil. They were about the size of squirrels. A troop of five or six of them all of a sudden appeared while I was photographing birds. I snapped off a series of shots before they vanished again into the forest.
Nikon D300 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/4 at 1/160th of a second