Unveiling the Mechanical Waves Behind Zebrafish Limb Regeneration

Biologists from Taiwan and the Philippines have identified mechanical waves involved in the regeneration of amputated tailfins in zebrafish. Through live-cell imaging, they observed a cell density wave propagating away from the amputated tissue during the regeneration process. The researchers developed mechanical models to explain this wave behavior, suggesting the involvement of an in vivo position-sensing mechanism based on traveling density waves in the regeneration process.