How animal life exploded on Earth
About 540 million years ago, our planet suddenly erupted with life, filling our oceans with a diversity of complex life. This is known as the Cambrian explosion, and for a long time scientists agreed it was triggered by a rise in oxygen levels in the atmosphere. But new research from Emma Hammarlund at Lund University is turning the tables completely on what scientists thought they knew to be true
https://www.lunduniversity.lu.se/article/how-animal-life-exploded-earth - 2025-11-28
