There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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A teen in Michigan built a working nuclear reactor. He taught himself how to build it as a weekend hobby project in his basement from ages 15-17 for $3500.
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There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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