Amazon Expedition With Will Smith Locates New Snake Species, DNA Reveals 10 Million Year Split

May 1, 2025
1 min read
A large snake resting among a dense tangle of branches near a body of water, likely in a rainforest or swamp-like habitat. Photo Source: The University of Queensland Australia
A large snake resting among a dense tangle of branches near a body of water, likely in a rainforest or swamp-like habitat. Photo Source: The University of Queensland Australia

Scientists have found what might be the world’s largest snake. The Northern Green Anaconda was discovered deep in the Amazon rainforest during filming of a National Geographic series featuring actor Will Smith.

“It was the highlight of my career,” said Professor Bryan Fry from the University of Queensland, who helped find the snake. His team measured one at 20.7 feet long. But local Waorani people say they’ve seen even bigger ones – up to 24 feet long and weighing about 1,100 pounds.

The snake is coiled around its prey in a muddy, marshy area with water plants and debris scattered around. Photo Source: The University of Queensland Australia

This isn’t just a bigger version of snakes we already know. DNA tests show it’s a completely new species. Scientists named it Eunectes akayima, which means “The Great Snake” in a local language.

The discovery was part of a planned expedition. Researchers were in Ecuador filming for National Geographic’s “Pole to Pole with Will Smith” series when they collaborated with the Waorani people. These indigenous guides took the scientists through the jungle in canoes to find the massive snakes hiding in shallow water.

Close-up image shows the head and mouth of a large snake with its mouth closed around something possibly prey or in a defensive posture. Photo Source: The University of Queensland Australia

What makes this find so important? The genetic difference between this snake and its closest relative is bigger than the difference between humans and chimps. That means this snake has been evolving separately for about 10 million years without anyone knowing it existed.


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Dr. Jesus Rivas spent nearly 20 years collecting data on anacondas across nine countries before confirming this discovery. The team’s findings were published in the science journal Diversity.

This giant snake is already in danger. The Amazon faces serious threats from logging, farming expansion, and pollution from oil drilling. Chemicals from oil spills are showing up in the snakes and in fish that local people eat.

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“These anacondas tell us about the health of the entire forest,” explained Dr. Sarah Corey-Rivas, who worked on the genetic testing. “When the snakes are in trouble, it means the whole ecosystem is at risk.”

The Waorani people consider these giant snakes sacred. Their knowledge was crucial to finding the anacondas in the first place, showing how important local expertise is to scientific discovery.

A close-up view of a large snake’s body, likely a green anaconda. Photo Source: The University of Queensland Australia

The Northern Green Anaconda reminds us that even today, the Amazon still holds amazing secrets. It also shows why protecting this unique forest matters – not just for giant snakes, but for all the undiscovered species that might still be hiding there.

Govind Tekale

Embarking on a new journey post-retirement, Govind, once a dedicated teacher, has transformed his enduring passion for current affairs and general knowledge into a conduit for expression through writing. His historical love affair with reading, which borders on addiction, has evolved into a medium to articulate his thoughts and disseminate vital information. Govind pens down his insights on a myriad of crucial topics, including the environment, wildlife, energy, sustainability, and health, weaving through every aspect that is quintessential for both our existence and that of our planet. His writings not only mirror his profound understanding and curiosity but also serve as a valuable resource, offering a deep dive into issues that are critical to our collective future and well-being.

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