7 of the 59 Naa10+/- females and 2 of the 31 Naa10-/Y males died in the first three days of life (for a total death rate in the first three days for all born pups of 46/127, or 36%), and after this time, none of the remaining Naa10+/- females died in the first 10 weeks of life (52/59, or 88% overall survival), whereas 10 of the remaining 29 Naa10-/Y males developed hydrocephaly and died in the first 10 weeks of life, for an overall survival of (19/31, or 61%). This evidence concerns the gene NAA10 and Hydrocephalus.