Cells expressing mEGFP-tagged Eomesodermin (Eomes) 24 hours after induction of the epithelial to mesenchymal transition in hiPS cells by activation of the WNT pathway using GSK3-β inhibition (5 µM CHIR99021). Image shows a maximum intensity projection of cells expressing mEGFP-tagged Eomes. Cells were imaged live in 3D on a spinning-disk confocal microscope. Scale bar, 50 µm.