My Momma told me that if these humanoids can have up to 12 babies in a single pregnancy that they should have 8 teats like a dog does. However to me, having what is basically a single big breast with 8 teats seems weirder for a humanoid than the ability to grow a 3rd breast. I mean yes it would mean that they can produce a lot more milk before they get full but still it seems weird. This is why I proposed the growth of a third breast possible after a pregnancy with at least triplets and having a group of lactating women for those who have 5 or more(quadruplets are much easier to nurse than quintuplets). Now this pretty much means that either the children have to nurse longer(which makes sense with the delay on eating solid food to 9 months instead of 6 months) or the lactating women have to somehow stimulate themselves to produce milk with or without a baby. But would this actually be beneficial? I mean on the one hand, there is a lot of food and water for them but on the other hand there is a higher chance of sickness spreading, even with an isolated sick bay. Plus there is a higher chance of one child getting severe allergies and even anaphylaxis.