Textbooks challenged by new discovery about how cells divide

ScienceDaily
Feb 28, 2026, 9:33 am99 ptsTrending
Scientists have uncovered a surprising new way that giant embryonic cells divide—without relying on the classic “purse-string” ring long thought essential for splitting a cell in two. Studying zebrafish embryos, researchers found that instead of forming a fully closed contractile ring, cells use a clever…

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