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
5.5 million years ago the Mediterranean dried out, with sobering lessons for humanity today – new research
Long-snouted seahorse (Hippocampus guttulatus). Vojce/Shutterstock Daniel García-Castellanos, Instituto de Geociencias de Barcelona (Geo3Bcn – CSIC) and Konstantina Agiadi,…
The melting Arctic is a crime scene. The microbes I study have long warned us of this catastrophe – but they are also driving it
Arwyn Edwards, Aberystwyth University The Arctic’s climate is warming at least four times faster than the global average,…
Carbon dioxide has been regulating Earth’s climate for hundreds of millions of years – new study
300 million years ago, much of the planet was covered in ice. james_stone76 / shutterstock Hana Jurikova, University…
Ancient Montana Was Plagued By a Massive Marine Reptile—And It Probably Looked Like a Dolphin
Ask anyone to picture what an “underwater reptile” looks like and they’d be likely to bring up images…