NANJING: Chinese scientists have discovered a 600 million-year-old sponge-like fossil that predates existing findings of primitive animals by 60 million years, Xinhua news agency reported.
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NANJING: Chinese scientists have discovered a 600 million-year-old sponge-like fossil that predates existing findings of primitive animals by 60 million years, Xinhua news agency reported.
To continue reading the rest of the article, click here