▶youtube ScienceBiology first seen 5 h ago, last 5 h ago, peak #4
The 50/50 Paradox: Why All Life on Earth Is Left-Handed
A new science explainer is drawing large audiences by tackling one of biology's strangest puzzles: why virtually all amino acids in living organisms are left-handed, despite chemistry producing both forms in equal measure. The video-style presentation walks through leading hypotheses, from meteorite influences to polarized light and chance fixation in early life, and viewers are responding strongly to the discussion of this unresolved origin-of-life mystery.
Why now: The left-handedness of amino acids is a striking unsolved puzzle in biology and the origin of life, and accessible explainers on it reliably attract wide interest.
amino acidsorigin of lifebiologyAnton Petrov
Evidence
- The 50/50 Paradox: Why All Life on Earth is Left-Handed · Anton Petrov · 213.5K
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