Viviparity in the longest-living vertebrate, the Greenland shark (Somniosus microcephalus).

  title={Viviparity in the longest-living vertebrate, the Greenland shark (Somniosus microcephalus).},
  author={Anthony Michael Carter and Hiroaki Soma},
BACKGROUND The Greenland shark is renowned for its great longevity, yet little is known about its reproduction. METHODS We supplemented the sparse information on this species by extrapolation from observations on other members of the sleeper shark family and the order Squaliformes. RESULTS AND CONCLUSION The Greenland shark is viviparous and a single observation suggests a litter size of about ten. The gestation period is unknown, but embryos reach a length of around 40 cm at birth… Expand
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