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W7wd9 TIL that it is absolutely dangerous to swallow button batteries, because the battery reacts with bodily fluids and releases a strong alkaline substance which can burn through tissue.
PwJO TIL that a father’s genes promote the baby’s weight in the womb, regardless of maternal health, while a mother’s genes limit the baby’s weight, regardless of fetal health, and a delicate balance is achieved via this conflict