Zoarces viviparus is a fish (Zoarcidae[?] (Eelpouts)), giving birth to live larvae ("Mother of Eels")
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... the age of 18, 7.5% from 18 to 24, 33.8% from 25 to 44, 21.3% from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females ...