Wildlife & conservation

The Big 7 of Cuyabeno

Seven emblematic species, three worlds, one Amazon reserve worth protecting

The Cuyabeno Wildlife Reserve is one of the most biodiverse Amazonian territories in Ecuador — rivers, lagoons, forests and wetlands sheltering an extraordinary variety of wildlife. From that richness was born the Big 7 Cuyabeno: an initiative by Ecosportour and Cuyabeno Dolphin Lodge that highlights seven emblematic species of the reserve, divided into three worlds.

The real strength of the Big 7 is that these seven animals are much more than a checklist. Each one represents a different dimension of Cuyabeno: the rivers and lagoons, the health of the aquatic ecosystems, the balance of the waters, the integrity of the forest, the life of the canopy, the slow world of the trees and the wetlands. Finding one is never just seeing an animal — it is discovering the ecosystem that makes its existence possible. Three ecosystems, three worlds. You can look for all seven on any of our Cuyabeno tours, with the lodge as your base camp.

Which tour sees which? On the 3-day tour you look for the first three — the water guardians. The 4-day tour goes after the first four, and from 5 days on, all seven are on the table. And one honest note: this is the living jungle, not a zoo — some days the reserve shows you everything, some days it keeps its secrets.

Dusk over the Laguna Grande in the Cuyabeno Wildlife Reserve
01 · One of three worlds

Guardians of the Water

Pink river dolphin swimming among the flooded vegetation in Cuyabeno
Pink river dolphin
Inia geoffrensis

The largest of the river dolphins, able to turn its head thanks to unfused neck vertebrae — and the lodge's namesake.

“To protect the water is to protect life.”
The Laguna Grande and the natural pool in front of the lodge — best at dawn and dusk.
Giant otters swimming in a creek of the Cuyabeno Wildlife Reserve
Giant otter
Pteronura brasiliensis

Up to 1.8 meters of playful, chattering predator that lives in close family groups along quiet creeks.

“A healthy river sustains a community of life.”
Quiet creeks off the main river; usually heard chattering before it is seen.
Black caiman floating in the waters of the Cuyabeno Reserve
Black caiman
Melanosuchus niger

The Amazon's largest predator, growing past 4 meters; its eyes glow red in the torchlight on night canoe rides.

“The waters of Cuyabeno have their own great guardians.”
On the night canoe ride, when eyes reflect the torchlight.
Woolly monkey feeding in the canopy of the Cuyabeno Wildlife Reserve
02 · One of three worlds

Dwellers of the Jungle

Jaguar walking along a riverbank in the Ecuadorian Amazon
Jaguar
Panthera onca

The largest cat of the Americas and a strong swimmer, moving silently between flooded forest and firm ground.

“Where the jaguar lives, the jungle still keeps its greatness.”
Riverbanks at first light — the rarest of the seven, the luckiest sighting.
Harpy eagle perched high in the canopy of the Cuyabeno Reserve
Harpy eagle
Harpia harpyja

One of the most powerful eagles on Earth, with talons the size of a bear's claws, hunting high in the canopy.

“A living forest is also protected from above.”
The crowns of the tallest emergent trees — a very rare, unforgettable sighting.
Three-toed sloth with its baby hanging from a branch in Cuyabeno
Three-toed sloth
Bradypus variegatus

A slow-motion canopy dweller whose fur hosts algae that tints it green — the jungle's best camouflage.

“Jungle life also moves slowly among the leaves.”
The canopy along the river, easiest to spot from the canoe.
Flooded forest and mirror-like waters of the Laguna Grande, Cuyabeno
03 · One of three worlds

Symbol of the Wetlands

Green anaconda coiled in the vegetation of the Cuyabeno wetlands
Green anaconda
Eunectes murinus

The heaviest snake in the world, an ambush hunter of the flooded wetlands that can exceed 5 meters.

“The wetlands are territories of extraordinary life.”
Sunning on branches above the water in the flooded wetlands.
Rated by our guides

Sighting chances by tour

From 1 to 5: how likely you are to spot each species on each program. The jungle always has the final word.
Species Cuyabeno 3 Days – 2 Nights Cuyabeno 4 Days – 3 Nights Cuyabeno 5 Days – 4 Nights Cuyabeno Reserve Explorer — 6 Days / 5 Nights (Paddling) Pink Dolphin Trail Adventure — 6 Days / 5 Nights
Pink dolphin
Giant otter
Black caiman
Jaguar
Harpy eagle
Sloth
Anaconda
Straight from the excursions

Through our guides’ binoculars

Sloths, potoos, capuchins, macaws, a young anaconda, toucans and a caiman at night — all filmed in the reserve, exactly as travelers see them.

Where they live

One reserve, three worlds

Illustrated map of the Cuyabeno Wildlife Reserve showing the location of Cuyabeno Dolphin Lodge, the Laguna Grande, El Puente and the indigenous communities
Rivers and the Laguna Grande for the water guardians, primary forest for the jungle dwellers, and the flooded wetlands of the anaconda.
Beyond the seven

More neighbors of the Big 7

Blue-and-yellow macaws perched near Cuyabeno Dolphin Lodge Parrots feeding on a tree in front of Cuyabeno Dolphin Lodge Tiny glass frog with transparent skin found in Cuyabeno Masked crimson tanager among the leaves in Cuyabeno Woolly monkey feeding in the canopy of the Cuyabeno Wildlife Reserve Anhinga about to take flight over the Cuyabeno River Squirrel monkey in the rainforest canopy near Cuyabeno Dolphin Lodge Red-capped cardinal perched on a branch in the Cuyabeno Wildlife Reserve
See the full gallery
Why it matters

Wildlife is heritage, not just an attraction

The Big 7 carries one fundamental message: wildlife is much more than a tourist attraction — it is a natural heritage we must protect. Responsible tourism, the participation of local communities and the conservation of these ecosystems are what guarantee that these seven neighbors will still be here for the next generation of travelers.

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