'Worm Christmas Greetings' from the Max Planck Institute for Molecular Biomedicine

Door no. 24 of the Max Planck Advent calendar 2014 apparently reveals a nicely decorated christmas tree. However, it is a fluorescence image of a flatworm. The picture was taken by Hanna Reuter and Florian Seebeck. Are you curious about the whole desciption of the image? Take a look at the Max Planck Advent calendar 2014 for yourself.
Merry Christmas!