Rio was keeping watch while his brother was napping.
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The maned wolf is the largest canid species in South America. The grow to be about 29 inches (73.5 cm) in height, at the shoulders and are 49-52 inches (124-132 cm) in length, and weigh about 44-50 pounds (20-23kg). They are not considered "true wolves" and are Near Threatened. (philadelphiazoo.org)
Apparently some of the people down in Argentina border lands think they're werewolves somehow.