Rivers have served as lifelines for civilizations throughout history, shaping landscapes and cultures across continents. These mighty waterways continue to fascinate researchers and explorers today, ...

This ecosystem is home to an extraordinary variety of plants and animals, accounting for about 25% of the world's terrestrial species.

Find the answer for World's longest river from the people who brought you the USA TODAY Daily Crossword Puzzle.

Now, state leaders are working to expand Arizona’s water supply flexibility by connecting CAP with the Salt River Project.

The largest river island in the world is not Majuli but the massive Marajó Island in Brazil, which covers 40,100 km² at the mouth of the Amazon River. Learn about the largest fluvial island in the ...

A roughly $250 million dollar project called a SCIF will allow the Salt River Project to make water deliveries to Central Arizona Project. CAP Assistant General Manager Darrin Francom says it will ...

The world's largest rain forest houses an abundance of wildlife. March 11, 2009 — -- It's home to the world's most vast variety of living creatures with the most birds, freshwater fish and ...