It goes beyond pregnancy, group cohesion and medical issues and morale, it also includes things that women just can’t do.
When everything is going right, the sun is shining, nothing is burning and no one is dying, then women can handle most jobs, or have a male lift something for her, or turn something, or push or pull something for her without a problem, but when a third of the crew is dead or dying, metal is twisted and warped, the ship is burning and at threat of being lost, when hydraulics are out and ammunition and fighting equipment has to be muscled and wounded carried up and down ladders, then the 50% lessor, upper body strength of the female and the 1/3 less leg strength of the female, comes into play.
107 is dead-on and bears repeating:
“When everything is going right, the sun is shining, nothing is burning and no one is dying, then women can handle most jobs, or have a male lift something for her, or turn something, or push or pull something for her without a problem, but when a third of the crew is dead or dying, metal is twisted and warped, the ship is burning and at threat of being lost, when hydraulics are out and ammunition and fighting equipment has to be muscled and wounded carried up and down ladders, then the 50% lessor, upper body strength of the female and the 1/3 less leg strength of the female, comes into play.”