Family Tree by Signe Wilkinson for January 13, 2022

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    MuddyUSA  Premium Member 5 months ago


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    RonBerg13 Premium Member 5 months ago

    Extinctions of Earth’s diverse life forms?

    Since life first began over 3.5 billion years ago, 99.9% of all species of life that have ever existed are now extinct.

    What makes us, and the species currently coexisting with us, so special?

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