The Jaguarundis are carnivores and eat a selection of meat and fish, including day-old chicks and chicken.

It is around twice as large as a domestic cat reaching nearly 36cm / 14 inches at the shoulder and weighs 3.5–7 kg (7.7–15.4 lb).

Secretive and alert, the jaguarundi is typically solitary or forms pairs in the wild, though captive individuals are more gregarious. Unlike the ocelot, the jaguarundi is more active during the day and hunts mainly during daytime and evening hours.

Individuals live in large home ranges and are sparsely distributed within a region. The jaguarundi is an efficient climber, but typically prefers hunting on ground. It feeds on various kinds of prey, especially ground-feeding birds, reptiles, rodents and small mammals. Mating occurs throughout the year, with peaks at different times of the year across the range.

After a gestation period of 70 to 75 days, a litter of one to four kittens is born.

Lifespan of up to 15 years is expected in captivity.