Explore the Amarillo River, the largest river ever on Earth that existed 145 million years ago, surpassing today's Amazon in size.
Explore South America's river system beyond the Amazon, including the Orinoco and Paraná rivers, and their role in biodiversity and ecosystems.
Discover why the Amazon River is the largest river by volume, discharging more water than any other river on Earth.
Discover why the Amazon River is the widest river in the world, stretching up to 30 miles during the rainy season.
Discover how and why the Amazon River reverses its flow annually due to Andes snowmelt, impacting ecosystems and human activities.
Explore how water flow direction varies by terrain and watershed. Learn why some rivers flow east to west and others don’t.
Discover why the Amazon River is the richest river globally, known for its unmatched biodiversity and vital ecological role.
Discover whether the Nile River is the longest river in the world and learn why the Amazon River also claims this title.
Discover why rivers don't flow uphill naturally and learn about rare tidal bores like the Amazon River's Pororoca phenomenon.
Explore how Brazil holds 12% of the world's fresh water, thanks to the Amazon River and vast rainforests.
Explore Brazil's vast blue water resources, including its rivers and lakes, and learn why it's a vital water reserve.