Carnegie Stage 1

A time-lapse video showing the progress of in vitro fertilization from shortly after (< 30 mins) sperm injection, through stage 1 to the beginning of stage 2. This video was generously provided by Dr. Dianna Payne and is taken from her work with Sean P. Flaherty and Colin D. Matthews at the Reproductive Medicine Unit of the University of Adelaide in Australia. Further information on this work is available here.