Characteristics: Species measuring about 55cm in length and with a tail measuring 20cm. It has an elongated body with low legs, a yellowish-gray color on top and dark-brown, almost black on the bottom. On the black face, as well as above the eyes, it has a yellowish stripe stretching, on each side, passing over the ears and extending to the middle of the neck.

Distribution: Wide distribution in South America, although not many were found.

Habitat: Forests and secondary forests.

Habits: This species is mainly crepuscular and nocturnal, but has been sighted during the day, in pairs or small groups. It is extremely agile and fast, with great ability to climb and swim.

Diet: Carnivorous, feeding mainly on small vertebrates like mammals, reptiles, amphibians, and birds.

Breeding: The gestation period is 3 months, and 2-4 pups are born.

In the UFRA area: Ferrets had a restricted spatial distribution, being found only in the wetlands with riparian forests. It is a rare species at the studied farms, as it was only found only once.