New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
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New Zealand Zoo More than Doubles Its Population of Endangered Lemurs

A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)
A ring-tailed lemur mother with her offspring tastes a frozen snack given to the animals to cool down in the DierenPark in Amersfoort, The Netherlands, 19 July 2022. (EPA)

New Zealand's Wellington Zoo has more than doubled its population of endangered ring-tailed lemurs after its four females gave birth to twins, the zoo's primate manager said on Tuesday.

Ring-tailed lemurs, endemic to Madagascar, are on the endangered list. Wellington Zoo has only had ring-tailed lemurs for 18 months and got Zeus, their male, at the beginning of 2022 with the hope they might be able to add to their population.

Primate manager Lisa Ridley said given all four adult female lemurs were first-time mums, they were not sure whether they'd have success with breeding them.

"We're very, very excited that we've had four sets of healthy twins and they're doing well," she said.

The first set of twins was born in August and the final set was born last week.

The population of ring-tailed lemurs, made famous by King Julien in the 2005 movie "Madagascar", is declining in the wild. One of the challenges is female ring-tailed lemurs are only sexually receptive for one or two days a year.

"The window is literally 24 to 36 hours - that was all the time our male had to do his job," said Ridley. "Zeus is a really, really nice male. He's laid back. He is very respectful of the females and he understands his position within the mob."

Ridley said the zoo was not sure of the sex of the young lemurs as they try not to interfere with them until they are older.

Once they mature, any new males and Zeus would likely be separated to create a bachelor group, as would naturally occur in the wild.

Zeus would be used for breeding for a few more years before being replaced to prevent the genetic pool from becoming too small, Ridley said.



Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
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Latest Tests Show Seine Water Quality Was Substandard When Paris Mayor Took a Dip

 Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)
Boats carrying members of delegations sail along the Seine during the opening ceremony of the Paris 2024 Olympic Games on July 26, 2024. (AFP)

Tests results released Friday showed the water quality in the River Seine was slightly below the standards needed to authorize swimming — just as the Paris Olympics start.

Heavy rain during the opening ceremony revived concerns over whether the long-polluted waterway will be clean enough to host swimming competitions, since water quality is deeply linked with the weather in the French capital.

Paris Mayor Anne Hidalgo took a highly publicized dip last week in a bid to ease fears. The Seine will be used for marathon swimming and triathlon.

Daily water quality tests measure levels of fecal bacteria known as E. coli.

Tests by monitoring group Eau de Paris show that at the Bras Marie, E. coli levels were then above the safe limit of 900 colony-forming units per 100 milliliters determined by European rules on June 17, when the mayor took a dip.

The site reached a value of 985 on the day the mayor swam with Paris 2024 chief Tony Estanguet and the top government official for the Paris region, Marc Guillaume, joined her, along with swimmers from local swimming clubs.

At two other measuring points further downstream, the results were below the threshold.

The statement by Paris City Hall and the prefecture of the Paris region noted that water quality last week was in line with European rules six days out of seven on the site which is to host the Olympic swimming competitions.

It noted that "the flow of the Seine is highly unstable due to regular rainfall episodes and remains more than twice the usual flow in summer," explaining fluctuating test results.

Swimming in the Seine has been banned for over a century. Since 2015, organizers have invested $1.5 billion to prepare the Seine for the Olympics and to ensure Parisians have a cleaner river after the Games. The plan included constructing a giant underground water storage basin in central Paris, renovating sewer infrastructure, and upgrading wastewater treatment plants.