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
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,…
July 19, 2023
Monkeys can sense their own heartbeats, an ability tied to mental health, consciousness and memory in humans
New research indicates that rhesus monkeys show interoception – the ability to sense physiological processes like their own…
April 28, 2022
Guava molecule synthesis offers new hope for liver cancer
Chemists at the University of Delaware report the first total synthesis of (–)-psiguadial A, a guava-derived molecule with significant potential to fight liver cancer.
August 28, 2025
As Varroa spreads, now is the time to fight for Australia’s honey bees – and you can help
Nic Vevers/ANU Alexander Mikheyev, Australian National University A tiny foe threatens Australian beekeepers’ livelihood, our food supply and…
March 15, 2024
