You will be given a definition of a task first, then some input of the task.
In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

FILE - In this Dec. 22, 2014, file photo, Sandra the orangutan sits in her enclosure at Buenos Aires' Zoo in Argentina. The mayor of Argentina's capital Horacio Rodriguez Larreta said Thursday, June 23, 2016, that the zoo will be turned into an ecological park and that it will gradually relocate most... (Associated Press) 
  
 FILE - In this Dec. 22, 2014, file photo, Sandra the orangutan sits in her enclosure at Buenos Aires' Zoo in Argentina. The mayor of Argentina's capital Horacio Rodriguez Larreta said Thursday, June 23,... (Associated Press) ||||| Buenos Aires has announced plans to close down its 140-year-old zoo, arguing that keeping wild animals in captivity and on display is degrading. 
  
 Mayor Horacio Rodríguez Larreta said that the zoo’s 2,500 animals will be gradually moved to nature reserves in Argentina which can provide a more suitable environment. The 44-acre zoo in the Palermo neighbourhood will become an ecopark when it is reopened later this year. 
  
 “This situation of captivity is degrading for the animals, it’s not the way to take care of them,” said Rodríguez, at a ceremony on Thursday. 
  
 The new ecopark will be “a place where children can learn how to take care of and relate with the different species”, the mayor said. “What we have to value is the animals. The way they live here is definitely not the way to do that.” 
  
 Some of the zoo’s bird species will be released in the Reserva Ecológica, a riverside ecological reserve covering 864 acres in Buenos Aires. Older animals and those too infirm to be moved will remain at the current site. 
  
 The new ecopark will also provide refuge and rehabilitation for animals rescued from illegal trafficking, city officials said. 
  
  
  
 Buenos Aires zoo was one of the city’s main tourist attractions, but despite its popularity, the decaying zoo had been running a loss for its private concessionaires. 
  
 It had also attracted bad publicity in recent years, particularly regarding the desperate plight of its captive polar bears during the city’s oppressively hot summers. The zoo’s last remaining polar bear, called Winner, died three and a half years ago partly due to soaring temperatures and inadequate conditions at the zoo. 
  
 “The most important thing is breaking with the model of captivity and exhibition,” animal rights lawyer Gerardo Biglia, a long-time campaigner for the closure of this city’s zoo, said in statements to the press. “I think there is a change coming for which we are already prepared because kids nowadays consider it obvious that it’s wrong for animals to be caged.” 
  
  
  
 Among the 50 animals staying behind will be Sandra, an orangutan that made 
  
 international headlines two years ago when a Buenos Aires court declared her “a non-human person” deserving rights. 
  
 “The problem is Sandra is a hybrid of Borneo and Sumatra orangutans so she doesn’t socialize,” Biglia said. But Sandra and the other animals that cannot be moved will no longer be exhibited to the public, city officials said. ||||| Image copyright AP Image caption Sandra the Orang-utan hit international headlines when A Buenos Aires court declared her " a non-human person" deserving rights 
  
 The mayor of Buenos Aires has announced that his administration has taken over the running of the city's zoo after a series of scandals about the condition of its animals and buildings. 
  
 It will now become an eco-park promoting environmental conservation. 
  
 Its 2,500 animals will be moved to sanctuaries in other parts of Argentina and abroad where they can be housed in better conditions. 
  
 Mr Larreta said the animals had been living in degrading conditions. 
  
 The zoo has been in existence since 1875, run by a private company which won a concession to manage it. 
  
 The zoo attracted very bad publicity in recent years, particularly over the inadequate conditions in which its polar bears were kept during the city's oppressively hot summers. 
  
 The last polar bear, called Winner, died three and a half years ago during a particularly hot season. 
  
 Among the 50 animals who will stay behind because they are too fragile to move is Sandra, an Orang-utan who made headlines two years ago. 
  
 Animal rights activists won a legal case in which she was granted the status of a "non-human with rights" after concerns were raised about her health and living conditions. |||||
Output:
The Buenos Aires zoo, one of the city's major tourist attractions, will be shutting down after 140 years to give its animal residents a shot at a better life, the Guardian reports. According to the BBC, the zoo had come under fire in recent years over the condition of its animals and infrastructure. Of particular concern was the suffering of the zoo's polar bears during Buenos Aires' sweltering summers. The zoo's last remaining polar bear, Winner, died in part because of hot temperatures and poor conditions. And while the zoo was originally built on the edge of Buenos Aires, the city had grown around it, putting animals in close proximity to buildings and busy streets, the AP reports. “This situation of captivity is degrading for the animals, it’s not the way to take care of them,” Buenos Aires mayor Horacio Rodríguez Larreta said during a ceremony Thursday, per the Guardian. Most of the zoo's animals—sources have them numbering between 1,500 and 2,500—will be moved to animal sanctuaries in Argentina and elsewhere. About 50 animals too old or sick to move will stay behind, though not on public display. Among those animals is Sandra the orangutan, who made news two years ago when a court gave her rights as a "non-human person." The 44-acre zoo will be transformed into an ecological park that will promote conservation and rehabilitate animals rescued from illegal trafficking.