The Amazon River once flowed westward, creating the Pebas System, a massive wetland teeming with diverse life. Shaped by tectonic shifts and Andes uplift, this ecosystem hosted unique species like enormous crocodilians and early mammals, some adapting to brackish conditions.
Related Posts
The Atacama Desert Is Covered In Silicate Glass—And Experts Think a Comet Is to Blame
Most people are already aware of the awe-inspiring scale of comets. These icy celestial bodies have been flinging…
How we discovered that sea turtles in Seychelles have recovered from the brink
Rich Baxter, Author provided April Burt, University of Oxford; Adam Pritchard, University of Exeter, and Cheryl Sanchez, University…
Collecting live snakes in remote Amazon regions for study is no easy task – here’s how we do it
Paulo Sérgio Bernarde, Universidade Federal do Acre (UFAC) Brazil records an average of 29,000 snakebites a year, leading…
Hawaii’s climate future: Dry regions get drier with global warming, increasing fire risk
Hawaii has very dry landscapes, such as parts of the west coast of Oahu. Maria Ermolova/iStock/Getty Images Plus…