Stay up to date with notifications from The Independent

Notifications can be managed in browser preferences.

Oldest living snake lays eggs 'without male help'

The elderly snake had not been around a male for at least two decades

Emily Goddard
Sunday 13 September 2020 11:23 BST
Comments
The 62-year-old ball python curled up around her eggs
The 62-year-old ball python curled up around her eggs (AP)

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

The oldest snake in captivity has left experts puzzled by laying eggs without the help of a male.

The 62-year-old ball python produced seven eggs at Saint Louis Zoo in Missouri despite having not been around a mate for at least two decades.

The birth was all the more unusual because the python is not only believed to be the oldest living snake, but also the species typically stops laying eggs long before they reach their sixties.

“She’d definitely be the oldest snake we know of in history” to lay eggs, Mark Wanner, the manager of herpetology at the zoo, said.

It is unusual but not rare, however, for pythons to reproduce asexually, Wanner said, and snakes sometimes store sperm for delayed fertilisation.

The unnamed python laid the eggs on 23 July.

Three of the eggs remain in an incubator and are expected to hatch within a month, two were used for genetic sampling and snakes in the other two did not survive, the St Louis Post-Dispatch reported.

The genetic sampling will show whether the eggs were reproduced sexually or asexually, called facultative parthenogenesis.

The only other ball python at the zoo is a male, aged about 31.

The female was given to the zoo by a private donor in 1961.

She laid a clutch of eggs in 2009 that did not survive, and another in 1990, but those could have been conceived with the male because the snakes had been put in buckets together while keepers cleaned their cages at the time.

Additional reporting by Associated Press

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in