Giles Laurent · CC BY-SA 4.0Crab-eating fox
Cerdocyon thous · aguara'i
The country's most common wild canid, often seen at nightfall on roads and estancias.
What it is
A gray-brown fox (aguara'i) with dark legs and ears that adapts to almost any habitat: forests, savannas, the edges of farm plots and even the outskirts of cities. It is an omnivorous opportunist, eating fruit, insects, crabs, rodents and eggs. It usually travels in pairs. Often its eyes shining in the headlights are what give it away.
Did you know…?
Its Guaraní name means “little fox,” as opposed to the aguara guasu, the “big fox” (maned wolf).
Where
Throughout the country: rural Chaco roads at dusk, Ybycuí National Park, Parque Guasu in Asunción and the eastern reserves.
Researched and reviewed in September 2026 with 3 sources. A second reviewer checked dates, coordinates and lodging. Hours and prices may change.