Argentina · Biodiversity · Species

Argentina Biodiversity: Animal and Plant Species and What Is Under Threat

Argentina runs from subtropical rainforest to Patagonian ice, from the Gran Chaco dry forest to the Atlantic whale coast — one of the widest ecological ranges of any country on Earth. Its threat list is correspondingly varied: deforestation, mining, fire, overfishing and a changing climate.

Constructive Voices · Updated September 2026 · Part of the Countries Built Environment record

A jaguar in Argentina — The jaguar is Argentina’s apex predator and the emblem of its rewilding movement, brought back to the Iberá wetlands after seventy years. Photo: Charles J. Sharp via Wikimedia Commons, CC BY-SA 4.0.

Argentina’s biodiversity is a function of its geography. The country stretches from the tropics to the edge of the Antarctic, and it climbs from sea level to the Andes at nearly seven thousand metres. That range produces rainforest in Misiones, dry forest across the north, the vast grasslands of the Pampas, the wetlands of the Paraná and Iberá, the arid Patagonian steppe, the Andean altiplano and a long, cold Atlantic coast. Each of those zones has its own species, and each has its own pressure. This report sets out the animals and plants that define the country, what is driving their decline, and why Argentina has also become one of the world’s most closely watched conservation and rewilding stories.

01 / What is at stake

The species and their status, at a glance

Argentina’s conservation story is concentrated in a comparatively small number of species that act as indicators for whole ecosystems. The table below sets out the country’s emblematic and threatened species, where they live, and why they matter. It is a summary of the assessments cited at the foot of this report, not a complete national Red List.

Selected Argentine species, habitat and status
Species	Habitat	Status / note
Jaguar (yaguareté)	Misiones, Chaco, Iberá	Critically endangered nationally; reintroduced and breeding in Iberá
Andean condor	Andes, Patagonia	Vulnerable; one of the world’s largest flying birds
Vicuña	Andean altiplano	Recovered from near-collapse after protection from hunting
Giant anteater	Iberá, Chaco	Reintroduced to Corrientes; population reportedly ~200 by 2026
Giant river otter	Wetlands and rivers	Locally extinct; reintroduced to Iberá
Maned wolf	Grasslands and wetlands	Near threatened; returned to Iberá
Chacoan peccary	Gran Chaco	Endangered; rediscovered after being thought extinct
Huemul (South Andean deer)	Patagonian Andes	Endangered; range-restricted, few thousand remain
Andean cat	High Andes	Endangered; rare and poorly known
Magellanic penguin	Patagonian coast	Near threatened; large colonies, sensitive to fisheries and oil
Southern right whale	South Atlantic, Valdés	Recovering; calves in Península Valdés bays
Hake	South Atlantic	Key commercial stock under fishing pressure

Why a table, not a list

Argentina’s problem is the opposite of obscurity: its species are well known and well studied. What decides their fate is land use, water and policy — which is why the country’s conservation arguments are made with deforestation rates, fire maps and reintroduction counts rather than generalities.

02 / The emblems

The animals Argentina is known for

Argentina’s flagship species span the full range of its landscapes. The jaguar (Panthera onca) is the apex predator, today concentrated in the north and, through reintroduction, back in the Iberá wetlands after seven decades of absence. The Andean condor, one of the largest flying birds in the world, soars over the whole spine of the Andes. The vicuña, the wild ancestor of the alpaca, grazes the high altiplano. The Magellanic penguin and the southern right whale are the emblems of the Patagonian coast — the whale breeding in the sheltered bays of Península Valdés, the penguin in colonies along the shoreline.

The giant anteater, the capybara and the maned wolf are the characteristic mammals of the wetlands and grasslands, and all three have responded to the rewilding of Iberá. In the far south, the huemul (a native deer) and the Andean cat are rare, range-restricted and threatened. And the giant river otter, locally extinct through most of its range, has been reintroduced to the wetlands in one of the country’s most ambitious species-recovery programmes.

Why Argentina’s list is so wide

Argentina holds the southern end of the continent’s tropical zone, the northern end of its sub-Antarctic zone, and the mountain and steppe ecosystems of the Andes in between. Few countries contain as many major biomes, which is why its species list spans jaguars and penguins, orchids and icefield plants.

03 / The north

The Gran Chaco and the subtropical north

The Gran Chaco is South America’s second-largest forest, a vast dry woodland of quebracho and algarrobo that stretches across northern Argentina, Paraguay and Bolivia. It is one of the most biodiverse dry forests on Earth and one of the most threatened. Argentina’s Chaco is being cleared for soy, cattle and, increasingly, for the commodity frontier that pushes north and west — making it one of the world’s leading deforestation fronts, alongside the Amazon. The animals that depend on it include the jaguar, the Chacoan peccary (a pig-like species thought extinct until rediscovered), the giant anteater and the tapir.

Further east, in Misiones, the Atlantic Forest survives as a fragment of a once-vast subtropical rainforest shared with Brazil and Paraguay, home to toucans, orchids and the jaguar population of Iguazú. The yaguareté — the Argentine jaguar — is critically endangered nationally, with only a few hundred animals left in small, isolated populations. Misiones and the Chaco together hold almost all of Argentina’s remaining big-cat habitat, which is why they are the focus of the country’s conservation effort.

04 / Wetlands and rivers

Iberá, the Paraná and the flood pulse

Argentina’s freshwater ecosystems are as significant as its forests. The Iberá wetlands in Corrientes — a mosaic of shallow lakes, marshes and floating islands fed by rainfall — form one of the largest wetland systems in South America and the setting for the country’s landmark rewilding project. The Paraná and Uruguay rivers, with their floodplains and gallery forest, carry much of the continent’s freshwater biodiversity, and the Esteros del Iberá and the Paraná Delta are internationally important wetlands.

These systems are driven by a flood pulse, and the pulse is the ecosystem: fish spawn in the flooded grasslands, waterbirds nest in them, and the wetlands recharge the aquifers and moderate floods downstream. The pressures are familiar and compounding — drought linked to climate variability has dried wetlands and fuelled catastrophic fires, agriculture and drainage have converted floodplains, and the Paraná’s hydropower dams alter the flow and sediment that the river’s ecology depends on. In the Paraná Delta and along the great rivers, the combination of drought, fire and land-use change has put the wetland system under sustained stress.

The drought-fire cycle

Climate-driven drought has lowered the Paraná and dried parts of Iberá, turning wetland into fuel. The resulting fires, in 2020 and again in 2022, burned enormous areas and killed wildlife directly — the clearest demonstration that climate change and biodiversity loss in Argentina are one problem, not two.

The Ibera wetlands — The Iberá wetlands in Corrientes are one of South America’s largest wetland systems and the site of Argentina’s landmark rewilding programme. Photo: Evelyn Proimos via Wikimedia Commons, CC BY 2.0.

05 / Patagonia and the Andes

Steppe, ice and the high altiplano

Patagonia is a landscape of steppe, mountains and ice. Its grassy steppe, shaped by a relentless wind and low rainfall, holds a distinctive fauna: the guanaco, the rhea, the puma and the Patagonian mara. The Andean condor ranges across it, and the huemul — a rare native deer — clings on in the Andean forests. Along the coast, the Valdés Peninsula is a UNESCO World Heritage site for its marine life: southern right whales, elephant seals, sea lions and Magellanic penguins.

The Andean spine carries its own set of ecosystems: the high altiplano, home to the vicuña, the flamingo and the Andean cat; the puna and its salt flats, which hold the lithium that the energy transition demands; and the southern ice field, the largest expanse of ice outside the polar regions, whose glaciers feed the rivers of Patagonia. Those glaciers are the subject of a national law — and of a live 2026 debate over whether to weaken it to allow mining, which is the sharpest current collision between Argentina’s biodiversity and its mineral economy.

The glacier question

Argentina’s glacier-protection law restricts activity on and around glaciers and the periglacial environment that supplies water to downstream ecosystems. In 2026 the government has moved to relax it in pursuit of critical minerals, particularly copper and lithium — a direct trade-off between the energy transition and the water systems that sustain Andean biodiversity.

The Perito Moreno glacier in Patagonia — part of the southern ice field that supplies the rivers, and a marker of a landscape where glaciers, water and mining policy collide. Photo: Luca Galuzzi via Wikimedia Commons, CC BY-SA 2.5.

06 / The coast and sea

South Atlantic marine life

Argentina’s marine territory is enormous — one of the largest in the world — and it sustains remarkable life. The Patagonian coast holds globally significant colonies of Magellanic penguins, and the Valdés Peninsula is a calving ground for the southern right whale and a haul-out for elephant seals. Further south, the Tierra del Fuego and the Beagle Channel host seabirds, sea lions and the marine mammals of the sub-Antarctic. The Argentine sea is also a major fishery, and its hake stock is among the most commercially important in the South Atlantic.

The pressures here are different from those on land: industrial fishing, bycatch of seabirds and marine mammals, and the growing question of offshore oil and gas off the Patagonian coast. Argentina’s marine conservation has moved forward with the creation of large marine protected areas, including the Namuncurá and Yaganes reserves in the South Atlantic, which together protect a substantial stretch of ocean. Those reserves matter because the South Atlantic is one of the least protected and least studied ocean regions on Earth, and because the same waters carry the fisheries and the hydrocarbon potential that the country’s economy wants.

The Península Valdés, a UNESCO World Heritage site since 1999, is the emblem of this coast. Its sheltered gulfs are a nursery for southern right whales — a species that was hunted to near-extinction and has recovered here under protection — and a haul-out for elephant seals and sea lions, with Magellanic penguins nesting in colonies along the shore. The peninsula is also a working example of the tension Argentina’s coast manages: it is simultaneously a conservation showcase, a tourism economy and a place where fishing, shipping and energy interests are active. Further south, the Beagle Channel and Tierra del Fuego hold the sub-Antarctic marine life — albatrosses, cormorants and sea lions — that connects Argentina to the Southern Ocean and to the global seabird flyways that pass through its waters.

A southern right whale — The southern right whale calves in the sheltered bays of Península Valdés, one of the world’s great whale-watching grounds and a centrepiece of Argentinian marine conservation. Photo: Dr. Haus via Wikimedia Commons, CC BY-SA 3.0.

07 / Plants and biomes

The flora, and why it defines the map

Argentina’s plants are as distinctive as its animals, and they are what define each biome. The Gran Chaco is a forest of quebracho — a hardwood so dense and tannin-rich that it was logged for railway sleepers and leather tanning for a century — together with algarrobo (carob), palo santo and cactus. The Atlantic Forest of Misiones, wetter and taller, holds laurel, guatambú, ambay and an extraordinary richness of orchids, bromeliads and tree ferns, layered like a tropical rainforest. The Pampas, once a sea of tall native grass, is now dominated by agriculture, with only fragments of its original flechillar and espartillar grassland left — the reason the Pampas is one of the most transformed biomes on the planet.

The Patagonian steppe is a low, wind-scoured shrubland of coirón grasses and neneo cushion plants, adapted to drought and grazing. The Andean altiplano carries puna grassland and bofedales — high peat-forming wetlands that store water and carbon. And the Valdivian and sub-Antarctic forests of the far south hold lengas (southern beech), coihue and ciprés, a relict flora related to the forests of New Zealand and Australia, left behind when the southern continents separated. Argentina’s vegetation is thus a record of its geology and its position at the southern end of the world: tropical forest in the north, ancient southern beech forest at the tip, and a vast grassland in between.

The Pampas paradox

The Pampas is Argentina’s most productive farmland and its most diminished ecosystem. The same deep soils that made it a global breadbasket also made its native grassland almost entirely convertible — a pattern that now presses north into the Chaco as the agricultural frontier moves.

08 / What is driving the decline

Deforestation, mining, fire and climate

Four pressures explain most of Argentina’s biodiversity loss, and they reinforce one another.

1. Deforestation

The Gran Chaco is one of the world’s leading deforestation fronts. Clearing for soy, cattle and commodity agriculture has removed vast areas of dry forest, fragmenting habitat and pushing species such as the jaguar and the Chacoan peccary toward local extinction. Argentina’s forest law — the Ley de Bosques — was meant to slow this, but enforcement has been contested and clearing has continued.

2. Mining and the energy transition

Lithium and copper sit under the Andean salt flats and the glacier-fed highlands. The 2026 move to weaken glacier protections is the clearest signal that the demand for critical minerals is now a first-order pressure on Andean water systems and their biodiversity — including the flamingo-rich salt lakes where lithium brine is extracted.

3. Fire and drought

Climate-driven drought has dried wetlands and forests, and fires have followed. The Iberá and Paraná Delta fires of recent years killed wildlife at scale and damaged ecosystems that had already been weakened by water extraction and land-use change.

4. Fisheries and the sea

Overfishing, bycatch and habitat damage pressure Argentina’s marine life, and the unresolved question of offshore hydrocarbons adds a further risk to the Patagonian coast.

09 / Conservation and rewilding

The Iberá story

Argentina is also home to one of the most ambitious conservation projects in the world. In the Iberá wetlands of Corrientes, a long-running effort — driven by the conservation philanthropy of Tompkins Conservation and the Rewilding Argentina foundation, working with the provincial government — has turned a heavily hunted landscape into a functioning ecosystem with its large animals restored. Land was bought and donated to create Iberá National Park; species were reintroduced one by one; and the park now anchors a growing nature-tourism economy that employs local people as guides, rangers and hosts.

The reintroductions are the headline. Jaguars returned to Iberá after seventy years, breeding in the wild again. Giant anteaters, which had been lost from Corrientes, were brought back and thrived — with the population reportedly reaching around two hundred by 2026. Giant river otters were reintroduced to a wetland they had vanished from, and maned wolves, collared peccaries, bare-faced curassows and red-and-green macaws followed. The point of rewilding is not to keep animals in a park but to restore the ecological functions — predation, grazing, seed dispersal — that make an ecosystem work again. Iberá is the proof that a depleted landscape can be brought back at scale.

Rewilding has also spread beyond Iberá. In the El Impenetrable national park in the Chaco, a parallel programme is restoring species to the dry forest, and jaguars from Iberá have been used to reinforce the small northern population. The model — buy land, protect it, reintroduce the missing species, build a local nature-tourism economy around it, and hand the park to the state — has become a template that other countries study. Its limits are equally clear: it works where there is large-scale philanthropy and willing government, and it cannot, by itself, stop a deforestation frontier that is driven by global commodity demand.

The economic dimension is central rather than incidental. Restored wetlands and forests provide water regulation, carbon storage and flood buffering — services with real value that the country would otherwise have to engineer. And the nature-tourism economy that has grown around Iberá and the national parks employs local people as guides, rangers, cooks and hosts, giving communities a direct stake in the wildlife. That is the political point of rewilding: it converts conservation from a cost imposed on rural areas into an income stream they own.

Conservation economics

Rewilding is expensive: land, animals, monitoring and years of work. The case for it in Iberá is partly economic — nature tourism creates local income — and partly ecological, since a restored wetland stores carbon, holds water and buffers floods as well as hosting wildlife.

Alongside rewilding, Argentina has expanded its protected-area network on land and at sea, with the Namuncurá and Yaganes marine reserves and the Iberá and El Impenetrable national parks as recent anchors. The country’s national parks administration now manages a network that is substantial by South American standards, though enforcement, funding and the pressure from commodity frontiers remain the limiting factors.

10 / Key takeaways

Key takeaways

Argentina contains an exceptionally wide range of biomes — subtropical forest, dry Chaco, wetlands, Pampas grassland, Patagonian steppe, Andean altiplano and a long South Atlantic coast — and thus a correspondingly wide species list.
Flagship species include the jaguar, Andean condor, vicuña, giant anteater, capybara, Magellanic penguin and southern right whale.
The Gran Chaco is one of the world’s leading deforestation fronts; the Paraná Delta and Iberá have suffered drought and catastrophic fire; the Andean salt flats and glaciers face mining pressure.
Argentina is a global leader in rewilding: jaguars returned to Iberá after seventy years, and giant anteaters, giant river otters and other species have been reintroduced to a landscape restored into a national park.
Conservation and nature tourism have become a real local economy, but deforestation, mineral demand and climate remain the dominant pressures.
Argentina’s biomes — Chaco, Atlantic Forest, Pampas, Patagonian steppe, altiplano and sub-Antarctic forest — are each defined by distinct flora, from quebracho and algarrobo to southern beech, and the Pampas is among the most transformed biomes on Earth.
Marine protection has advanced through the Namuncurá and Yaganes reserves, but the South Atlantic remains one of the least protected and least studied ocean regions.

Frequently asked questions

What animals is Argentina known for?

The jaguar, the Andean condor, the vicuña, the giant anteater, the capybara, the maned wolf, the Magellanic penguin and the southern right whale, among many others.

What are the main threats to biodiversity in Argentina?

Deforestation — especially in the Gran Chaco — mining and the weakening of glacier protections for lithium and copper, drought and fire in the wetlands, overfishing at sea, and climate change.

What is rewilding in Argentina?

It is the restoration of lost species and ecological functions, most famously in the Iberá wetlands, where jaguars returned after seventy years and giant anteaters, giant river otters and other species were reintroduced.

Are there jaguars in Argentina?

Yes, though the national population is critically endangered and concentrated in Misiones and the north. A reintroduced population now breeds in the Iberá wetlands, where the species had been absent for seventy years.

What is the Gran Chaco and why does it matter?

It is South America’s second-largest forest, a dry woodland of enormous biodiversity stretching across northern Argentina, Paraguay and Bolivia. It is also one of the world’s leading deforestation fronts.

What is the glacier law debate in Argentina?

Argentina’s glacier-protection law restricts mining near glaciers and the periglacial zone that feeds downstream water systems. In 2026 the government moved to relax it to allow copper and lithium projects, creating a direct trade-off with Andean water and biodiversity.

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Primary sources and news citations

The Guardian, How weaving, glamping and kayak tours are helping to tackle deforestation in Argentina’s Gran Chaco (25 March 2026).
Mongabay, Argentina considers weakening glacier safeguards in pursuit of critical minerals (February 2026).
Tompkins Conservation, rewilding and national park creation in Argentina and Chile.
Rewilding Argentina, species reintroduction and Iberá.
Global Rewilding Alliance, rewilding jaguars in Argentina: from individuals to ecosystems.
Earth.org, rewilding project sees jaguars return to Argentina.
The Good Press, from 0 to 200: Argentina’s giant anteater recovery in Iberá (2026).
Global Forest Watch, Argentina forest-loss dashboard.
Forest Trends, forest finance and the Gran Chaco.
Argentina Ministry of Environment, national environment and protected areas.
World Bank, Argentina country data.
Convention on Biological Diversity, national biodiversity strategies and reporting.
Argentina Travel, official parks and natural destinations.

Methodology and sourcing. Species status and population figures are attributed to the assessments and reporting cited and are described as recorded estimates, not fixed counts. Deforestation and fire figures reflect the reporting cited; the glacier-law debate is described as ongoing and contested. Where a recovery or decline is uncertain, this report says so rather than resolving it. Position as at September 2026.

Images. Photos are openly licensed (CC0 / public domain / CC BY / CC BY-SA) and credited in each caption; illustrative images, where used, are labelled and do not depict a named real site, species population or event.

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Argentina Biodiversity: Animal and Plant Species and What Is at Risk

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