Snake stores sperm for five years before giving birth

Rattlesnake gives birth from stored sperm after five years in captivity

source: New Scientist vol 212 no 2835, October 22 2011 p19

A rattlesnake has given birth in Florida after five years in captivity, and no contact with male snakes. She was captured in 2005 and gave birth in 2010. The DNA of the babies was found to be different from the mother's, according to Warren Booth from North Carolina State University, Raleigh. Snakes can reproduce with no male contribution, but the DNA differences indicate stored sperm.
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