About 250 million years ago, the Permian-Triassic mass extinction killed over 80 per cent of the planet's species. In the aftermath, scientists believe that life on earth was dominated by simple species for up to 10 million years before more complex ecosystems could evolve. Now this longstanding theory is being challenged by a team of international researchers – including scientists from McGill University and Université du Québec à Montréal.

Classified as: Fossils, ocean, ecosystem, Permian-Triassic, mass extinction, climate change, Sustainability
Published on: 9 Feb 2023

An often-overlooked form of manganese, an element critical to many life processes, is far more prevalent in ocean environments than previously known, according to a study by U.S. and Canadian researchers published this week in Science.

Classified as: ocean, manganese
Category:
Published on: 23 Aug 2013
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