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They referred to this structure as a parturition line in keeping with the scientific term for giving birth, and hypothesized that it is caused by changes in the carbon dioxide and acidity of blood.

This expression pattern suggests a role for these pastn genes in brood pouch development and/or hatching of embryos within the brood pouch prior to parturition.

Researchers are beginning to uncover how breast milk composition changes over time after parturition and how it shapes the structural and functional maturation of infant-associated microbial communities.

There was a time, in other words, when women who couldn't afford the A+ pregnancy package, the gold-plated parturition experience could have used their grant for it; but those days are long gone.

When the hour of parturition was at hand, she went alone into the cellar, and without any assistance or attendance was delivered of twins, whom she brought up underground.