Octopuses Have Three Hearts, Blue Blood, and Can Taste Everything They Touch
Octopuses have three hearts, blue copper-based blood, can taste through their skin, and have nine brains — one central…
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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