Deep within the dense wetlands of the Amazon rainforest, scientists have uncovered an astonishing discovery, a new species of giant anaconda.
Found in a remote part of Ecuador, this massive reptile was identified as Eunectes akayima, or the northern green anaconda, after researchers confirmed it was genetically distinct from the well-known southern green anaconda.
Despite its size, the species had gone unnoticed for millions of years, hidden within one of the world’s most biodiverse but least explored ecosystems. The discovery not only adds a new chapter to our understanding of Amazonian wildlife but also highlights how much of nature’s mystery still lies untold beneath the rainforest canopy.
This article is for general knowledge only and is based on information from online sources. Images used are for illustrative purposes only and may not depict the exact newly discovered species.
1. A New Giant Anaconda Species In The Amazon

Scientists announced the discovery of a previously unknown species of giant anaconda in the Amazon rainforest. Found in the Bameno region of Waorani Indigenous territory in Ecuador, this snake is genetically distinct from the common green anaconda known to science.
The research team, led by herpetologists, captured and studied several specimens during a challenging 10-day jungle expedition. Their work confirmed that these anacondas represent a new species, a rare find given that green anacondas are already among the most famous snakes in the world.
This discovery highlights how even huge, well-known animals can still hold surprises in the biodiversity-rich Amazon.
2. Officially Named “The Great Snake”

The new species has been named Eunectes akayima, which translates to “the great snake” in the language of the Carib Indigenous people of Venezuela. Researchers chose this name to honor the region’s Indigenous heritage and the snake’s impressive size.
Its common name is the northern green anaconda, reflecting its range in the northern part of South America. Until now, scientists believed green anacondas were a single species, Eunectes murinus, found across much of the continent.
The designation of E. akayima as a separate species recognizes the snake’s unique genetic identity while paying homage to local culture.
3. Genetically Distinct With An Ancient Lineage

DNA studies show that Eunectes akayima diverged from its southern cousin (Eunectes murinus) nearly 10 million years ago. The genetic difference between the two is about 5.5%, which scientists call remarkable. For context, humans differ from chimpanzees by roughly 2% of DNA, so a 5.5% gap between two snakes that look alike is huge.
Such a long separate evolutionary history means the northern green anaconda has been on its own path since the Miocene epoch, likely adapting to its specific environment over millennia. This deep genetic split confirms that we’re truly dealing with a distinct species.
4. A Truly Massive Snake Species

Green anacondas are famous as the heaviest snakes in the world, and the newly described species lives up to that reputation. During the expedition, researchers captured a female measuring 6.3 meters (20.7 feet) long, about the length of a large family car.
Local Waorani hunters told stories of even larger anacondas in the area, up to 7.5 meters (24.6 feet) in length and weighing around 500 kg (1,100 lbs), though those giants remain anecdotal. With such dimensions, Eunectes akayima ranks among the largest snake species on Earth, rivaling the longest pythons.
5. Apex Predator With A Vital Ecosystem Role

As an apex predator, the northern green anaconda sits at the top of its food chain and plays a crucial role in its ecosystem. It preys on a variety of animals, from fish and rodents up to large creatures like deer and even caimans (small crocodilians).
By keeping populations of these prey species in check, anacondas help maintain a healthy balance in the rainforest food web. Researchers note that the presence of such top predators is a sign of a robust ecosystem.
Losing these magnificent snakes would be catastrophic, as it could disrupt the delicate ecological balance.
6. Discovery Guided By Indigenous Knowledge

This new anaconda species might have remained unknown if not for the help of Indigenous Waorani guides who know the forest intimately. The research team received a rare invitation from Waorani leaders to explore their territory for the legendary giant snakes they consider sacred. Local guides led scientists through dense jungle and swampy rivers, showing them where anacondas might be found.
In fact, the Waorani contribution was so vital that community members, including Chief Penti Baihua, were credited as co-authors on the scientific paper announcing the species. This partnership between scientists and Indigenous experts underscores the value of traditional knowledge.