Nature Physics - Zebrafish can regenerate amputated fins back to their original size. It is now shown that gradients in extracellular signal-regulated kinase activity act as rulers during fin bone...

Cells take on specific fates during development based on cues, which can be genetic or mechanical. Now it is shown that the decision of cell nuclei to either migrate to the outer cortex or remain inte...

Nature Physics - Early positioning of the embryo nuclei is not well understood. Now, experiments show that the orientation of the mitotic spindle is controlled by topological interactions, which...