{Reference Type}: Journal Article {Title}: The enigma of cell intercalation. {Author}: Clément R; {Journal}: Elife {Volume}: 13 {Issue}: 0 {Year}: 2024 May 3 {Factor}: 8.713 {DOI}: 10.7554/eLife.98052 {Abstract}: Geometric criteria can be used to assess whether cell intercalation is active or passive during the convergent extension of tissue.