Do YOU have this muscle?
There is a muscle, called palmaris longus, in the forearm missing in about 10% of the population. You can easily test if you have it by putting your pinky and thumb together while holding your palm facing up and flex the hand upwards. If 1 tendon is standing out more than the others that’s palmaris longus.
Archaeologist here. You can give birth after you’ve died. Occasionally we will come across a really confronting burial where the skeleton of an unborn child is halfway through its mothers pelvis. Generally what happens is the woman has died before giving birth and after burial a build up of gasses from decomposition forces the baby out. We refer to this as “coffin birth”.