The uterus' role extends far beyond pregnancy, say researchers who removed the uterus from female rats and watched the animals' cognition and memory drop. Textbooks often portray the organ as useless outside of pregnancy, and one-third of U.S. women have their uterus out by age 60.

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The uterus' role extends far beyond pregnancy, say researchers who removed the uterus from female rats and watched the animals' cognition and memory drop. Textbooks often portray the organ as useless outside of pregnancy, and one-third of U.S. women have their uterus out by age 60.