Not sure why but some areas have more females then males. I tend to find females on the sand bar / shoals and males on the drop offs / edges. Seems females feed more on slack current then males do as well.
If you get a lot of females - might be worth going a touch deeper or wait until current moves better.
Females with eggs ( sponge ) are more common late fall but can occur this time of year.
The females go to mouth of bay to release the eggs - incredible journey.
The eggs hatch in the ocean - then currents bring the tiny crabs back into the bay.
What could be more mundane than dying of old age or of natural causes when there is death by misadventure to be pursued ? Skip