Emergent Collective Chemotaxis without Single-Cell Gradient Sensing
Emergent Collective Chemotaxis without Single-Cell Gradient Sensing
Many eukaryotic cells chemotax, sensing and following chemical gradients. However, experiments show that even under conditions when single cells cannot chemotax, small clusters may still follow a gradient. This behavior is observed in neural crest cells, in lymphocytes, and during border cell migration in Drosophila, but its origin remains puzzling. …