California mice are paragons of monogamy.
The neuronal bases of how they (or any other species) remember their partners is unknown.
We found a surprisingly important role for hippocampal CA1 as the pair bond develops and a concomitantly diminishing role of CA2.
www.biorxiv.org/content/10.6...
![Sexual sacramentalism
Epiphanius claims that the Borborites were inspired by Sethianism and that elements of sexual sacramentalism formed an important role in their rituals. He asserts that the Borborites engaged in a version of the eucharist in which they would smear their hands with menstrual blood and semen and consume them as the blood and body of Christ respectively.[4] He also alleges that, whenever one of the women in their church was experiencing her monthly period, they would take her menstrual blood and everyone in the church would eat it as part of a sacred ritual.[9]
The Borborites were also said to extract fetuses from pregnant women and consume them, particularly if the women accidentally became pregnant during related sexual rituals.[10] Buckley notes that this implies treatment of an aborted foetus as "strayed semen", and would serve to prevent it from developing into another body "for the archons' clutches".](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:qmddyutwcf5gweawmng6ovl4/bafkreieyb5k3lq4jeh6hom55y7whydgeoyb42nxhgi3fxmb4agruzpgqmm)
