On December 3, 2019, the Konrad Lorenz Institute (KLI) in Vienna, Austria hosted McDonnell Germ Line Regeneration Working Group Co-Leader, Kate MacCord, and Stem Cell Regeneration Working Group Leader, Lucie Laplane. The purpose of this KLI colloquium was to continue fostering productive collaborations between the two groups. Other attendees included Guido Caniglia, Scientific Director at the KLI, and Hanna Worliczek, a former long-term McDonnell Initiative Scholar (2019) at the Marine Biological Laboratory in Woods Hole, MA.