original: Compared with other species, human childbirth is dangerous.
simplifications: Human childbirth is dangerous. Human childbirth is dangerous in comparison to animal birth. Human childbirth is dangerous compare to other births. Human childbirth is dangerous compared to other mammals. Human childbirth is especially dangerous. Human childbirth is more dangerous than other species. Human childbirth is more dangerous than childbirth in other species. Human childbirth is dangerous is comparison to childbirth in other species. Side by side with other species, human childbirth is unsafe. Human childbirth is dangerous when compared with other species.