NEW YORK - It's been about two months since zookeepers at the St. Louis Zoo found a ball python believed to be about 62 years old coiled around a clutch of seven eggs she had laid. But the surprise has not worn off.
The oldest snake ever documented in a zoo was a 47-year-old ball python at the Philadelphia Zoo, Mr Wanner said, making the St. Louis Zoo's python now the oldest snake ever recorded.Of the eggs laid on July 23, two are being used for genetic sampling, which will help determine whether the python reproduced sexually or asexually.
Jonathan Lasos, a professor of evolutionary biology at Washington University in St. Louis who specialises in reptiles, said scientists had known for a while that there were some species of snakes and lizards in which no males exist and females reproduce asexually. The ball python in St. Louis, which is between 4 and 4 1/2 feet long and does not have a name, arrived at the zoo in 1961 through a private owner. She was estimated to be 3 years old at the time. The zoo also has a male ball python that is about 31 years old. They are kept side by side in the zoo's herpetarium, out of public view, but never come into contact.
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