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Shock: First Animal on Earth Was Surprisingly Complex (LiveScience.com)

LiveScience.com - Earth's first animal was the ocean-drifting comb jelly, not the simple sponge, according to a new find that has shocked scientists who didn't imagine the earliest critter could be so Read »
Created by desi Created 18 weeks 6 days ago – Made popular 18 weeks 6 days ago
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