Years after Argentina Shut a Notorious Zoo, the Stranded Animals are Finally Being Rescued

Members of a global animal welfare organization treat a tiger at the former Lujan Zoo, which closed in 2020, in Lujan, Argentina, Thursday, Oct. 30, 2025. (AP Photo/Natacha Pisarenko)
Members of a global animal welfare organization treat a tiger at the former Lujan Zoo, which closed in 2020, in Lujan, Argentina, Thursday, Oct. 30, 2025. (AP Photo/Natacha Pisarenko)
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Years after Argentina Shut a Notorious Zoo, the Stranded Animals are Finally Being Rescued

Members of a global animal welfare organization treat a tiger at the former Lujan Zoo, which closed in 2020, in Lujan, Argentina, Thursday, Oct. 30, 2025. (AP Photo/Natacha Pisarenko)
Members of a global animal welfare organization treat a tiger at the former Lujan Zoo, which closed in 2020, in Lujan, Argentina, Thursday, Oct. 30, 2025. (AP Photo/Natacha Pisarenko)

Lions, tigers and bears that managed to survive in substandard conditions at a now-shuttered zoo on the outskirts of Buenos Aires, Argentina, paced weakly in their claustrophobic cages on Thursday, waiting their turn to receive urgent veterinary care for the first time in years.

The 62 big cats and two brown bears were being evaluated and treated before their eventual transfer to vast wildlife sanctuaries abroad — among the most complex animal rescues undertaken in Argentina after the country's recent arrangement with an international animal welfare organization, The Associated Press reported.

Argentine authorities in 2020 shut down the Lujan Zoo — famous for letting visitors handle and pose for pictures with tigers and lions — over mounting safety concerns.

But the plight of the captive cats there only worsened. For the past five years, the animals were sustained by little more than a few loyal zookeepers who, despite having lost their jobs at Lujan, took it upon themselves to feed and care for the stranded lions and tigers left behind.

Most didn’t make it.

When Four Paws, an animal rights charity, first visited the zoo in 2023, caretakers counted 112 lions and tigers — already down from the 136 big cats housed in the zoo at the time of its closure.

Two years on, almost half of the animals have succumbed to illnesses from poor nutrition, wounds from fights with animals they’d never encounter in the wild, infections from lack of medical attention and organ failure from the stress of living in such cramped conditions.

“It was really shocking,” said the organization’s chief program officer, Luciana D’Abramo, pointing to a 3-square-meter (10-square-foot) cage crammed with seven female lions. “Overcrowded is an understatement.”

Next-door, two Asian tigers shared a tiny cage with two African lions — a “social composition that would never be found in nature,” D’Abramo said. “There’s a lot of hostility, fighting.”

A single lion typically gets 1 hectare (2.5 acres) to itself at Four Paws' sanctuaries around the world.

After striking an agreement with Argentina’s government earlier this year, Four Paws took over responsibility for the surviving wild animals in Lujan last month.

The memorandum of understanding involved Argentina committing to end the sale and private ownership of exotic felines in the large South American country, where enforcement efforts often run aground across 23 provinces that have their own rules and regulations.

Although the Vienna-based organization has previously evacuated starving tigers from Syria's civil war, abandoned bears and hyenas from the war-ravaged Iraqi city of Mosul and neglected lion cubs from the besieged Gaza Strip, it has never rescued such a large number of big cats before.

“Here, the number of animals and the conditions where they are kept make this a much bigger challenge,” said Dr. Amir Khalil, the veterinarian leading the group’s emergency mission. “This is one of our biggest missions ... not only in Argentina or Latin America, but worldwide."

On Thursday, veterinarians and experts from the organization were scrambling around the derelict zoo to assess the animals one by one. Most had not been vaccinated, sterilized or microchipped for identification.

The team whisked sedated lions and tigers onto operating tables, dispensing nutrients, antibiotics and doses of pain medication via IV drips.

The quick checkups frequently transformed into emergency surgeries. One tiger was treated for a bleeding gash in its tail last week and a lioness for a vaginal tumor on Thursday. Several tigers and lions needed root canals to repair infected molars that had been broken on the steel cage bars.

Others received treatment for claws that had grown inward from walking too much on unnatural, plank flooring in the spartan enclosures.

After evaluating each animal in the coming weeks, Four Paws will arrange for their transfer to more expansive, natural homes around the world.

Some Argentine zookeepers who spent decades feeding and caring for the big cats say they're happy to see Four Paws improving the conditions. But there was also a sense of nostalgia for how things were.



Saudi Team Successfully Separates Moroccan Conjoined Twins

The medical and surgical team of the Saudi Conjoined Twins Program began the separation surgery for 13-month-old Moroccan conjoined twins. SPA
The medical and surgical team of the Saudi Conjoined Twins Program began the separation surgery for 13-month-old Moroccan conjoined twins. SPA
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Saudi Team Successfully Separates Moroccan Conjoined Twins

The medical and surgical team of the Saudi Conjoined Twins Program began the separation surgery for 13-month-old Moroccan conjoined twins. SPA
The medical and surgical team of the Saudi Conjoined Twins Program began the separation surgery for 13-month-old Moroccan conjoined twins. SPA

The medical and surgical team of the Saudi Conjoined Twins Program succeeded on Thursday in separating 13-month-old Moroccan conjoined twins Saja and Doha at King Abdullah Specialist Children’s Hospital in Riyadh.

The surgery was in implementation of the directives of Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud and Prince Mohammed bin Salman bin Abdulaziz Al Saud, Saudi Crown Prince and Prime Minister.

Supervisor General of the King Salman Humanitarian Aid and Relief Center (KSrelief) and head of the medical and surgical team Dr. Abdullah Al Rabeeah said the twins arrived in the Kingdom on April 24.

The medical team conducted extensive and detailed examinations and held several meetings, determining that the twins were conjoined at the chest and abdomen and shared the membranes surrounding the heart, liver, and intestines.

He earlier noted that the surgery was being performed in six stages over approximately 10 hours, involving 23 consultants, specialists, nurses, and technical staff. He added that the complex procedure has a success rate of more than 70%.

He also noted that this is the fourth separation surgery performed for conjoined twins from Morocco and the 73rd case undertaken by the Saudi Conjoined Twins Program, which has cared for 159 sets of twins from 28 countries across five continents since 1990.


WWF: Populations of Wild Species Fell by an Average of 73% from 1970 to 2022

FILE PHOTO: A giraffe and zebras walk at a water point at the Amboseli National Park as authorities investigate the deaths of 18 elephants in Kenya's Amboseli ecosystem, in Kajiado County, Kenya,  August 26, 2026. REUTERS/Monicah Mwangi/File Photo
FILE PHOTO: A giraffe and zebras walk at a water point at the Amboseli National Park as authorities investigate the deaths of 18 elephants in Kenya's Amboseli ecosystem, in Kajiado County, Kenya, August 26, 2026. REUTERS/Monicah Mwangi/File Photo
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WWF: Populations of Wild Species Fell by an Average of 73% from 1970 to 2022

FILE PHOTO: A giraffe and zebras walk at a water point at the Amboseli National Park as authorities investigate the deaths of 18 elephants in Kenya's Amboseli ecosystem, in Kajiado County, Kenya,  August 26, 2026. REUTERS/Monicah Mwangi/File Photo
FILE PHOTO: A giraffe and zebras walk at a water point at the Amboseli National Park as authorities investigate the deaths of 18 elephants in Kenya's Amboseli ecosystem, in Kajiado County, Kenya, August 26, 2026. REUTERS/Monicah Mwangi/File Photo

Nearly 6,000 monitored vertebrate species across more than 35,000 populations declined by an average of 73% from 1970 to 2022, the World Wide Fund for Nature said in its latest Living Planet Report published on Thursday.

The Living Planet Index, managed by the Zoological Society of London and WWF, monitored a total of 35,803 populations covering 5,790 different species of mammals, birds, reptiles, amphibians and fish over the 52-year period.

The 2026 Living Planet Report estimates that overall populations fell by an average of around 2.5% per year over the period, Reuters reported.

"Monitored global populations continue to decline ⁠on average with no ⁠evidence yet of that global recovery," said Andrew Terry, chief conservation officer at ZSL.

The average rate of decline across the monitored populations does not represent a headcount of the total number of animals lost from 1970 to 2022, and the number is especially sensitive to changes in already small ⁠populations.

Monitored freshwater species saw an average decline of 85%, while terrestrial species fell 69% and marine species 59%, the index showed.

The steepest average population declines were in South America, at 95%, with Africa also experiencing losses of 80% from 1970 to 2022.

The 2026 Living Planet report incorporated an additional 295 species and 967 populations across a longer time series compared to the last report in 2024.

The additional data "reinforces our confidence in the continued decline in biodiversity," Terry told ⁠a briefing.

⁠Habitat loss and degradation were the most frequently reported threat, but wildlife populations are also at risk from overexploitation, climate change, pollution, invasive species and disease, the report said.

"Amid these steep declines, there are grounds for hope, rooted in evidence. Wildlife populations are under pressure but recovery is in reach," said Kirsten Schuijt, WWF's director general.

Targeted conservation efforts have enabled populations of some species to recover, including tigers, Atlantic and Pacific bluefin tuna, southern African elephants and green sea turtles.

Alongside conservation efforts, changes in the energy, food and finance systems are required to halt nature loss, Schuijt said.


A 194-year-old Tortoise, World's Oldest Land Animal, May Hold Clues to Longer Life

Tortoise named Jonathan, a giant tortoise believed to be the world's oldest known living land animal, stands in front of Plantation House, in St Paul on the South Atlantic island of St Helena, January 6, 2013.  Joe Hollins/Handout via REUTERS
Tortoise named Jonathan, a giant tortoise believed to be the world's oldest known living land animal, stands in front of Plantation House, in St Paul on the South Atlantic island of St Helena, January 6, 2013. Joe Hollins/Handout via REUTERS
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A 194-year-old Tortoise, World's Oldest Land Animal, May Hold Clues to Longer Life

Tortoise named Jonathan, a giant tortoise believed to be the world's oldest known living land animal, stands in front of Plantation House, in St Paul on the South Atlantic island of St Helena, January 6, 2013.  Joe Hollins/Handout via REUTERS
Tortoise named Jonathan, a giant tortoise believed to be the world's oldest known living land animal, stands in front of Plantation House, in St Paul on the South Atlantic island of St Helena, January 6, 2013. Joe Hollins/Handout via REUTERS

The world's oldest-known terrestrial animal, an Aldabra giant tortoise named Jonathan and estimated to be about 194 years old, may owe his extraordinary longevity to a combination of genetic traits and an ability to keep key cellular systems functioning in a more youthful way, according to scientists.

Members of this species are known to live more than 100 years, but Jonathan has far exceeded that. Brought to the remote South Atlantic island of St Helena as a fully grown animal in 1882, likely from the Aldabra Atoll or the Granitic Seychelles, the tortoise now resides in a paddock at Plantation House, the governor's residence.

"Other Aldabra tortoises have been claimed to have lived as long as Jonathan, but he has the most documentary evidence supporting his age," said Benjamin Vaisvil, a researcher affiliated with the organization Kallel and co-lead author of the study published on Wednesday in the journal Science Advances.

Scientists have studied Jonathan to explore the secrets of the animal's amazing longevity, sequencing his genome and analyzing his epigenome — the chemical markers that control which genes switch on and off.

"We found changes in Jonathan's genome in pathways associated with longevity, like DNA repair, mitochondrial function, insulin regulation and telomere function," ⁠Reuters quoted Vaisvil as saying.

Mitochondria are structures ⁠considered the powerhouse of a cell. Insulin is a hormone that helps regulate levels of blood sugar by letting it enter the body's cells for energy. Telomeres are protective caps at the ends of chromosomes, structures that carry genetic information inside cell nuclei.

Researchers compared Jonathan's epigenome with four other Aldabra tortoises, ranging from juveniles to older adults. While pretending to feed Jonathan, they waited until he began biting the air, then wedged his mouth open with a gloved hand and scraped under his tongue with a specialized kit. St Helena officials restrict blood draws to prevent infection risks.

To explain the finding, Vaisvil compared the genome to a cookbook and the epigenome to handwritten notes in the margins.

"As the cookbook ages, those notes become ⁠more difficult to read clearly. We can think of that as methylation entropy," Vaisvil said, referring to a metric for disorder in a certain biochemical process.

Most of the notes in Jonathan's "cookbook" look very old. But in certain regions, stretches of DNA that act as switches controlling whether genes are turned on or off, Jonathan's methylation entropy was lower than that of every tortoise studied except a 5-year-old juvenile. These regions controlled genes that influence longevity.

The researchers identified 287 genes with variants unique to Jonathan, including some linked to tumor suppression and DNA repair. The tortoise also carries extra copies of a gene that encodes a protein that hunts down ageing and cancerous cells.

When younger, Jonathan was known for mischievous antics including overturning chairs and lying on croquet balls, according to the tortoise's longtime veterinarian and study co-author Joe Hollins. Cataracts have since left him mostly blind. Hollins describes Jonathan today as "a gentle giant."

Determining how long giant tortoises can live is challenging because reliable historical records are scarce and many outlive researchers. Record-keeping before the 20th century also was problematic. While a young tortoise's age can be estimated from growth ⁠rings on the plates that form ⁠the animal's shell, ascertaining the age of adults is more difficult.

The new study involved only one exceptionally old tortoise, making it hard to determine whether the traits identified are unique to Jonathan or common among long-lived tortoises.

"We cannot say for certain that what we found is the reason for his longevity," Vaisvil said.

Environmental factors also may have contributed. Jonathan lives on a tropical island, with an optimal diet carefully managed by trained veterinarians.

The research findings broadly match patterns documented in studies of exceptionally long-lived people, suggesting that some mechanisms of aging may be shared across species.

Vaisvil noted that a recent study of a 117-year-old woman found unusually efficient mitochondrial function, echoing findings in some of Jonathan's regions.

Despite his age, Jonathan retains a voracious appetite, Hollins said, lifting his head and stretching out his long neck when the veterinarian calls out his name.

"I know he knows me, knows my voice and my handling, and I also know it isn't love on his part but a recognition of the arrival of a feast," Hollins said. "And yet I, of course, don't mind. I have a huge affection for him."

"He is a remarkable symbol. Icon, I know, is an overused word, but Guinness World Records has just given him 'icon' status this year," Hollins said.

Beloved by island residents, Jonathan has lived through world wars and the rise and fall of empires.

"He is symbolic of resilience, longevity, endurance, a persistent presence throughout huge historic events," Hollins said.