A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males. The Shreveport Aquarium announced last week that Yoko the swell ...

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The swell shark pup, "Yoko", hatched in January from an egg lain in a tank occupied only by two female sharks, neither of whom had encountered a male in more than three years. Yoko's health is ...