A howler monkey sits on a log at the Temaiken Biopark, in Escobar city, 50 km from Buenos Aires, capital of Argentina, on July 27, 2016. (Xinhua/Martin Zabala)
A howler monkey sits on a log at the Temaiken Biopark, in Escobar city, 50 km from Buenos Aires, capital of Argentina, on July 27, 2016. (Xinhua/Martin Zabala)