Science
Animals Emerged 350 Million Years Earlier Than Previously Thought, Fossil Discovery Suggests – Gizmodo Australia
Ancient rocks from northwestern Canada have been found to contain structures consistent with sea sponges. At 890 million years…

Ancient rocks from northwestern Canada have been found to contain structures consistent with sea sponges. At 890 million years old, they could be the oldest known animal fossils on Earth.
Simple, single-celled life forms first appeared on Earth about 3.4…
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