Sylvain Cordier / South American grey fox (Dusicyon griseus), resting, Punta Norte, Peninsula Valdes,Argentina

Sylvain Cordier / South American grey fox (Dusicyon griseus), resting and yawning, Punta Norte, Peninsula Valdes, Argentina

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) at rest, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) yawning, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) at rest, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) portrait, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) walking along, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean fox (Pseudalopex culpaeus) standing alert, vicinity of Laguna Verde, Reserva Eduardo Avaroa, altiplano, Bolivia

Bernard Castelein / Culpea or Andean Fox (Pseudalopex culpaeus) standing alert, Siloli Desert, altiplano, Bolivia

Jose B. Ruiz / South American grey fox (Lycalopex griseus) Torres del Paine. Patagonia, Puerto Natales, Chile.

Gabriel Rojo / Grey fox (Lycalopex griseus) resting, Torres del Paine National Park, Chile

Gabriel Rojo / Grey fox (Lycalopex griseus) resting, Torres del Paine National Park, Chile