'Virgin birth': A captive anaconda became pregnant by herself and gave birth to two babies

A female anaconda living in an all-female exhibit gave birth to two babies without sexually reproducing with a male snake, a Massachusetts aquarium recently announced. The 10-foot-long, 30 pound mother — named Anna — gave birth to two babies that appear to be genetically identical to their mother, the New England Aquarium said, citing DNA testing. Anna has never been exposed to an adult male snake, the aquarium said.

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