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Ancestors of Modern Demosponges Were Earth’s First Animals: Study

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Sep 30, 2025 - 16:45
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Ancestors of Modern Demosponges Were Earth’s First Animals: Study
Pictorial representation of the timeline for ancient steranes, highlighting key compounds and their possible biogenic sources. Image credit: Shawar et al., doi: 10.1073/pnas.2503009122.

Scientists from MIT and elsewhere have identified chemical fossils that may have been left by ancient sponges in rocks more than 541 million years old.

The post Ancestors of Modern Demosponges Were Earth’s First Animals: Study appeared first on Sci.News: Breaking Science News.

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