Finally, a look at the oldest branch of the Autonomic Nervous System as noted in the Polyvagal theory - the Dorsal Vagal Complex, the sub-system in us that is more akin to older, slower, less engaged critters on the family tree. This is a rambling look at a unique part of our biological heritage that has profound clinical implications for Somatic Experiencing practitioners and others tuning into the wisdom hidden in our physiology.