Yes and we were lucky we only had to pass 1 truck on the way up and on the way down we did not meet one until the bottom. The other unpaved pass was similar but the switch back part was a lot longer. It is a coatimundi, which is in the raccoon family. You see them in Mexico and Guatemala too. The ones at Iguazu are pretty vicious according to the signs as too many tourists have been feeding them and they bite.