The reason can be even that blatantly simple as only females can be pregnant, and until 100 years ago, they were pregnant for 5-10 years in their life. This, ob

The reason can be even that blatantly simple as only females can be pregnant, and until 100 years ago, they were pregnant for 5-10 years in their life. This, obviously, doesn’t mean that it’s beneficial in any sense in the current world, or that this should be the case inherently.