The Perros Demoníacos are a pair of mythical coyotes, one black and one white, that roam Madrugada. Hunt both and trade their pelts for unique gear at the Hunting Lodge in your guerrilla camp.
They live in Madrugada. Get their brochure so the den shows up on your map before you travel there.
Back up against cover so they can't flank you, and focus one at a time. A shotgun or an LMG handles fast animals best. Fire and explosives are fine to use.
Two pelts for unique gear at the Hunting Lodge, plus meat that trades for Industrial Circuits.
Mamutito
Mamutito is a giant mythical hog that lives on Isla Santuario, in Mamutito's Glen. Hunt it for its tusks, which you trade for unique gear at the Hunting Lodge in your guerrilla camp.
Sanguinario
Sanguinario is a mythical jaguar that prowls El Este. Hunt it for its pelt, which you trade for unique gear at the Hunting Lodge in your guerrilla camp.
Venodiente
Venodiente is a glowing, mutated crocodile in Valle De Oro that escaped a crocodile reserve after exposure to a chemical dump. It shrugs off bullets but burns well, and its leather trades for unique gear.