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.
What Happened When the Amazon Flowed Backward?
Related Posts
Should We Rewrite the “Tree of Life?”
Evolutionary research points to all multicellular organisms branching out almost close to the bottom of the so-called “tree…
November 19, 2022
Record-smashing heatwaves are hitting Antarctica and the Arctic simultaneously. Here’s what’s driving them, and how they’ll impact wildlife
Windmill Islands, near Casey Research Station, Antarctica Dana M Bergstrom, Author provided Dana M Bergstrom, University of Wollongong;…
April 11, 2022
An expert explains the stranding of 97 pilot whales in WA and their mysterious ‘huddling’ before the tragedy
Kate Sprogis, The University of Western Australia Sad scenes are unfolding in Western Australia after a pod of…
August 8, 2023
We developed a way to use light to dismantle PFAS ‘forever chemicals’ – long-lasting environmental pollutants
PFAS can contaminate the environment – their chemical structure makes them difficult to remove. George Pachantouris/Moment via Getty…
January 12, 2025
