A US President in the heart of the Amazon Rainforest? Yes, President Theodore Roosevelt is also remembered for his adventures, and an expedition in the Amazon is one of them.

Back in 1913, the Brazilian Army started to explore the Amazon Rainforest and its peculiarities. Marshal Rondon, a Brazilian pioneer, invited President Theodore Roosevelt for an expedition to find the source of the “River of Doubt.”

Sponsored by the American Museum of Natural History, the expedition took a year and was a huge success. Hundreds of new species of plants, insects, and animals were discovered.

President Roosevelt is remembered for his fearless no matter the situation, when warned about the dangerous of the expedition by the head of the Museum of Natural History, he stated:

If it is necessary for me to leave my bones in South America,” he wrote, “I am quite ready to do so.” 

Nowadays the former “River of Doubt” is known as the Roosevelt River.

Brazil and the USA have a rich history of cooperation, and the Amazon Rainforest has been the stage for many of those episodes.

Famazonia is not only preserving nature; we also preserve human history and American history.


When you join us, you become a Famazonia Guardian. More than just a title, you become a source of hope.

Don’t think about money; you’re not donating money but rather a small part of your wealth that can represent the only meal they will have access to in times of need.

To support us now, please visit our Donation Page and take action. What may take only a few minutes for you can represent the only chance of survival for our brothers and sisters in the Amazon Rainforest.