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......is downright astonishing is the duration of the gestation period, estimated to be as much as 42 months (3.5 years). If this is correct, the gestation period of the Frilled Shark is nearly twice as long as that of an African Elephant (22 months) and by far the longest of any vertebrate animal.http://www.elasmo-research.org/education/ecology/deepsea-frilled_shark.htm
distance relative of a snake?