A Parrot Understood the Concept of Zero — A Mathematical Idea Humans Took Millennia to Grasp
Alex the African Grey parrot, trained by Dr. Irene Pepperberg, demonstrated understanding of zero — a concept humans t…
Your Body Contains Enough DNA to Stretch from Earth to Pluto 17 Times
Inside every one of your roughly 37 trillion cells lies about 2 meters of tightly coiled DNA. Stretched end to end, the total length is unfathomable: enough to span the solar system 17 times.
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