%0 Journal Article %T The enigma of cell intercalation. %A Clément R %J Elife %V 13 %N 0 %D 2024 May 3 %M 38700510 %F 8.713 %R 10.7554/eLife.98052 %X Geometric criteria can be used to assess whether cell intercalation is active or passive during the convergent extension of tissue.