Later, in the Codex Artaud, she imagined a figure bent like a square arch and hung with teats, like the Etruscan bronze of the she-wolf that suckled Romulus and Remus.
A "female" helicopter/she-wolf feeds human figures blood from teats dangling from its undercarriage; a "male" bomb distributes death from its two heads and its grotesque armoury of proliferating penises; genderless victims are represented in the form of bloodied rib-bones with screaming faces.
In marsupials, such as opossums and kangaroos, the young are born incompletely developed and very small; the young are then kept for a long time in the pouch of the mother, all the while firmly attached to the teats and suckling.
Cowpox (vaccinia) and pseudocowpox (paravaccinia), localized on the udder and teats of cows, are transmissible to human beings by skin contact.
In all species, the pouch is well developed, opens forward, and contains four teats.
Therefore, the teats are for a while feeding young of very different developmental stages, during which time different teats produce two different compositions of milk.
The teats are located on the abdomen along two primitive lines (milk ridges), a characteristic of mammals that lie down when nursing.
Female pigs have many teats, but ruminants have only two to four (although domestic cattle occasionally have as many as six).
After this period the young migrate through the vagina to attach to the teats for further development.
As many as 25 young may be born in each litter, but the maximum number raised by the mother is determined by the number of teats (normally 13) in the pouch, and the average number of pouch young is usually 7 or 8. Born blind and naked and weighing about 0.13 gram (0.0046 ounce) apiece, these tiny, larvalike young crawl upward using their forelimbs as they seek the mother's fur-lined pouch.
Twin volcanic cones, the Deux Mamelles ("Two Teats"), dominate the landscape along the coast northwest of Dakar.
