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Microbial mats in Shark Bay, Western Australia, similar to those that lived around 200 million years ago. Yalimay Jimenez Duarte WA-OIGC, Curtin University

How chemical clues from prehistoric microbes rewrote the story of one of Earth’s biggest mass extinctions

The end-Triassic mass extinction was a cataclysm for the world’s prehistoric species, killed off by volcanoes that altered Earth’s seas and skies. But new research shows it didn’t happen when we thought.
Buffel grass surrounding Hakea divaricata, a bushfood and medicine tree. Ellen Ryan-Colton

The buffel kerfuffle: how one species quietly destroys native wildlife and cultural sites in arid Australia

Buffel grass causes just as much damage to native wildlife as feral cats. But with the right control measures, biodiversity can bounce back.