New Scientist article The zoo lights in the zoo have become a popular attraction for many families, and many people would like to be able to go back inside and see them again.
In the UK, a group of zookeeper unions has been pushing for the lights to be turned off, as they say it would be a breach of their contract.
The unions have previously told the BBC that the lights would “be a significant burden” on the economy, with an estimated 6,000 people a year visiting the zoo.
The Zookeepership Council of Great Britain said it was “concerned about the impact on staff and visitors” and that it would “reconsider” its position on the issue.
Zoo lights are a symbol of the zoo and are a key part of the attraction.
The lights come in two sizes, which the union wants to change.
The first one is bigger and has three LED lights, which are used to show the zoo’s animals.
The second one is smaller and has only two lights.
The zoo said that it was currently “working on options to meet the needs of visitors and staff”.
It said that there was “little data on the impact of the LED lighting on economic performance”.
The union has been campaigning to change the way zoos work for more than a decade, and last month said that the union had asked for the changes to be made to the agreement.
The changes, which would take effect next year, would see the lights switched off by 2023, the BBC reports.
The union says that the decision was a “tactical response” to a recent study, which showed that the zoo had lost £15m a year.
The paper by Professor Stephen Leggatt and his team found that while the zoo has been able to attract more people by using the lights, it has lost out on about £60m a day.
The zookeeping union has said that its members were “surprised” by the study and have not seen the full impact of having the lights on.
However, Mr Leggatts told the Daily Mail that the study had found that the loss of revenue from the lights had been the biggest factor in the decline in visitor numbers.
It also found that a change in lighting “has been shown to reduce costs by reducing the number of staff working in the enclosure, reducing the time that people spend at the enclosure and reducing the amount of time that visitors spend in the park”.
The zoo’s chief executive, Ian Black, said that he was “not aware” of any other zookeemen or women going on strike over the issue, and that he had been in contact with the unions to discuss the issues.
He added that the changes would be discussed at the end of this month.
“We have been working very hard over the last two years to make the changes as easy to implement as possible,” he said.
“It’s very clear that this is a very important issue for the UK’s zoos, and the UK zookeemakers.
We will do everything we can to ensure that it’s an issue that’s not missed.”
However, the unions have criticised the government for not being proactive on the matter.
Mr Leghatt said that, despite having a “fair deal” with the government, the zookeephiles union was “fearful” about the changes being made.
“The zoo was very concerned when we were told in 2014 that we had been told in 2016 that the change would be made,” he told the Independent.
“This has not changed, and they have not made any commitment to make it happen.”
The zoo has also received criticism for its treatment of visitors.
In April, it was revealed that a young boy who was visiting the park had been “pushed around” by zoo staff, with one staff member telling him to “shut up”.
The boy, aged eight, told the Guardian that he felt “sickened and angry” and felt “like an animal” and “like a piece of meat”.
“They pushed me to the ground, slapped me and pushed me up against the wall,” he added.
The boy was told to stay away from the zoo, and was sent to a care home.
The Independent has contacted the zoo for comment.