This photo shows the cerebellum (part of the brain) of a mouse embryo. Multiplicating neurons are shown in red. Purkinje cells, a specific type of neuron important for regulating fine movement, balance and posture, are shown in green. Blue color indicates all cell nuclei. This image was awarded as part of a NIAMS-supported study on the effect of the enzyme Ezh2 on the development of neurons in the embryonic brain.