2020 Photomicrography Competition

Chain of daughter individuals from the asexually reproducing annelid species Chaetogaster diaphanus

Dr. Eduardo Zattara Dr. Alexa Bely

Instituto Nac. de Investigaciones en Biodiversidad y Medio Ambiente
Bariloche, Rio Negro, Argentina
5X (Objective Lens Magnification)

This creature is a chain of daughter individuals, which are a product of asexual reproduction of the Chaetogaster diaphanus, a type of freshwater worm. Dr. Eduardo Zattara studied and wrote his doctoral dissertation on the unique reproductive process as well as its ability to regenerate lost heads or tails after amputation, which has given us all a glimpse in to a relatively new field of study, regenerative medicine.