Female Sharks Can Store Sperm For 4 Years Before Giving Birth

January 11, 2015 7:54 PM

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Biologists have discovered a female brown-banded bamboo shark that has fertilized her eggs with sperm she held onto for 45 months.

Researchers at the California Academy of Sciences have found a shark egg case dropped by an adult bamboo shark that has signs of healthy development. However, the Steinhart Aquarium’s female shark adults had spent nearly four years (45 months) in complete isolation from males. The biologists now bel...

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