World’s Largest Turtle Nesting Site Discovered in the Amazon
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📰 The quick summary: Scientists discovered the world’s largest turtle nest with 41,000 adult female Giant South American river turtles on a sandbank in the western Brazilian Amazon, revealing the success of conservation efforts in protecting this endangered species.
📈 One key stat: Approximately 41,000 endangered Giant South American river turtles were documented at a single nesting site, establishing it as the largest turtle nesting aggregation ever recorded and highlighting the importance of this habitat for species survival.
💬 One key quote: “We knew it was an important area, but we didn’t have the full picture of the size,” Camila Ferrara, one of the study co-authors and a turtle specialist at the Wildlife Conservation Society, told Mongabay by phone.
1️⃣ The big picture: Scientists have discovered the world’s largest turtle nesting site in the western Brazilian Amazon, housing approximately 41,000 adult female Giant South American river turtles. These endangered turtles, which can grow nearly three feet long, were identified through an innovative combination of drone surveys and ground tracking on the largest sandbank of the Guaporé River along the Brazil-Bolivia border. Researchers believe the actual population is even larger, as the survey didn’t include five nearby smaller beaches or male and juvenile turtles. The growing turtle population represents a conservation success story attributed to a 40-year collaboration between the Brazilian government’s Amazon River Turtle conservation program and local communities.
2️⃣ Why is this good news: The identification of this massive turtle population demonstrates that conservation efforts can successfully protect endangered species when properly implemented. The growing numbers since at least 2014 showcase the effectiveness of the 40-year-old Amazon River Turtle conservation program’s collaboration with local communities. This discovery provides valuable baseline data for future monitoring, allowing scientists to track population fluctuations and quickly identify threats. For Indigenous communities, healthy turtle populations support food security, as turtle meat has been a staple in Amazonian diets for thousands of years. The research also tested innovative counting methods that improve accuracy in wildlife surveys, helping scientists better understand and protect other threatened species.
3️⃣ What’s next: Scientists plan to extend their monitoring to include five additional smaller beaches in the area to gain a more complete picture of the turtle population. Conservation teams must remain vigilant against wildlife trafficking, with recent police operations having already recovered 450 illegally captured turtles in August 2025. Ongoing collaboration between government conservation programs and local communities will be crucial to ensure continued protection of these endangered turtles against threats like illegal commerce.
Read the full story here: Mongabay – Largest turtle nest in the world revealed in drone study
