Regarding Histologica differences, I know nothing, but regarding pulsations involving the cranial-sacral fluid I do know quite a lot. Not only have I treated humans but also animals - but not mice There is a great similarity in rhythms but generally, the basic wave which is between 10-12 cycles per minute in humans is often slightly longer in the animals have treated. I am hoping one-day scientists will develop an instrument to measure what Cranial Sacral therapists have known to exist for over 100 years.