Zoo in Spain Helps Elderly Elephants Age Gracefully

Two old African elephants Bully, left, and Susi, stand inside the Barcelona Zoo in Spain, Thursday, March 27, 2025. (AP Photo/Hernan Muñoz)
Two old African elephants Bully, left, and Susi, stand inside the Barcelona Zoo in Spain, Thursday, March 27, 2025. (AP Photo/Hernan Muñoz)
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Zoo in Spain Helps Elderly Elephants Age Gracefully

Two old African elephants Bully, left, and Susi, stand inside the Barcelona Zoo in Spain, Thursday, March 27, 2025. (AP Photo/Hernan Muñoz)
Two old African elephants Bully, left, and Susi, stand inside the Barcelona Zoo in Spain, Thursday, March 27, 2025. (AP Photo/Hernan Muñoz)

At the Barcelona Zoo, a 40-year-old African elephant places her foot through the metal barrier where a zookeeper gently scrubs its sole — the beloved pachyderm gets her “pedicure,” along with apple slices every day.
The treatment is part of the zoo’s specialized geriatric care for aging animals that cannot be reintroduced into the wild as zoos world over increasingly emphasize lifelong care, The Associated Press reported.
“Sending them back into nature would be an error," said Pilar Padilla, head of the zoo's mammal care. "It is very likely they wouldn’t survive.”
Zoos have undergone a rethink in recent decades with the emphasis on the conservation of species and education, moving away from the past paradigm that often displayed exotic animals as a spectacle.
The new approach includes knowing how to adapt to the needs of aging animals, which has led zoos to create bigger, more nature-like enclosures, such as the Sahel-Savannah area at the zoo in the Spanish city of Barcelona.
Along with breeding programs to reintroduce fit animals into nature, zoos today want to ensure that animals living longer due to advancements in veterinary care can age gracefully, said Martín Zordan, the CEO of the World Association of Zoos and Aquariums, or WAZA.
“Specialized geriatric care is becoming increasingly essential," Zordan told AP at the organization’s Barcelona offices.
Zordan said that just like older people, elderly animals require more care: regular health checks, arthritis treatment, softer foods or nutritional supplements, adapted living spaces and monitoring of mental and behavioral health.
Along with caring for a pair of aging elephants, the Barcelona Zoo is also the home for a 15-year-old wolf, a leopard and a tiger who are both 17, as well as some older birds — including a flock of senior flamencos.
It's not alone — several zoos in the United States, for example, highlight their treatment of older animals, such as the zoos in Baltimore and Baton Rouge.
A study of grief Zookeepers at the Barcelona Zoo, not far from the city’s Mediterranean coastline, are closely monitoring its two aging female pachyderms, Susi and Bully (pronounced BUH'-yi), as they cope with the recent death of Yoyo, their former pen-mate and long-time companion.
Yoyo died in December at age 54.
Susi, at 52, is now among the oldest known African elephants in captivity, even though WAZA said the age of animals born in the wild is approximate. Bully, who is 40, is also considered old for an African elephant. All three were captured in the wild and spent time in circuses an other zoos before coming to Barcelona.
The zoo is now working with the University of Barcelona to study the impact of Yoyo's death on Susi and Bully. It’s the first study of its kind, focused on elephants not from the same family after the death of a long-time companion, Padilla told The Associated Press during a recent visit to the zoo’s elephant enclosure.
At first, Susi and Bully showed their shock by not eating, but are now adapting well and turning to one another, including even sharing food, Padilla said, adding that Susi has taken on the dominant role that Yoyo had.
The proof is in the teeth For elephants, their teeth are the real age test.
“What marks the decline of the animal is the wear on their teeth,” Barcelona zookeeper José María Santamaría said after finishing the Bully’s pedicure. “They go through six sets of molars during their life, and when they reach around 40 years old they lose the last set.”
Susi and Bully require daily checkups, food suited for their now molar-less mouths and extra attention to their legs — hence the daily pedicures and the enclosure's soft sandy floor to cushion aching feet.
“Those are the sort of considerations taken because we care about these animals living comfortably and leading lives with dignity,” Zordan said.



Astronomers Spot Galaxy Shaped Like the Milky Way But is Far More Massive

An artist's impression shows a galactic merger in which the galaxy on the right hosts a quasar at its core, in this handout image released by the European Southern Observatory on May 21, 2025. ESO/M. Kornmesser/Handout via REUTERS
An artist's impression shows a galactic merger in which the galaxy on the right hosts a quasar at its core, in this handout image released by the European Southern Observatory on May 21, 2025. ESO/M. Kornmesser/Handout via REUTERS
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Astronomers Spot Galaxy Shaped Like the Milky Way But is Far More Massive

An artist's impression shows a galactic merger in which the galaxy on the right hosts a quasar at its core, in this handout image released by the European Southern Observatory on May 21, 2025. ESO/M. Kornmesser/Handout via REUTERS
An artist's impression shows a galactic merger in which the galaxy on the right hosts a quasar at its core, in this handout image released by the European Southern Observatory on May 21, 2025. ESO/M. Kornmesser/Handout via REUTERS

Astronomers have observed a galaxy dating to an earlier epoch in the universe's history that surprisingly is shaped much like our Milky Way - a spiral structure with a straight bar of stars and gas running through its center - but far more massive, offering new insight into galactic formation.

The distant galaxy, called J0107a, was observed as it appeared 11.1 billion years ago, when the universe was about a fifth of its current age. The researchers used data from the Chile-based Atacama Large Millimeter/submillimeter Array (ALMA) and NASA's James Webb Space Telescope to study the galaxy, Reuters reported.

They determined that the galaxy's mass, including its stars and gas, was more than 10 times greater than that of the Milky Way, and it was forming stars at an annual rate approximately 300 times greater. J0107a was more compact than the Milky Way, however.

"The galaxy is a monster galaxy with a high star formation rate and plenty of gas, much more than present-day galaxies," said astronomer Shuo Huang of the National Astronomical Observatory of Japan, lead author of the study published this week in the journal Nature.

"This discovery," said study co-author Toshiki Saito, an astronomer at Shizuoka University in Japan, "raises the important question: How did such a massive galaxy form in such an early universe?"

While a few galaxies that are undergoing star formation at a similar rate to J0107a exist in today's universe, almost all of them are ones that are in the process of a galactic merger or collision. There was no sign of such circumstances involving this galaxy.

J0107a and the Milky Way have some commonalities.

"They are similarly huge and possess a similar barred structure. However, the Milky Way had plenty of time to form its huge structures, while J0107a didn't," Saito said.

In the first few billion years after the Big Bang event 13.8 billion years ago that initiated the universe, galaxies were turbulent entities and were much richer in gas than those existing currently - factors that fostered extreme bursts of star formation. While galaxies with highly organized structures like the barred spiral shape of the Milky Way are common now, that was not the case 11.1 billion years ago.

"Compared to other monster galaxies in the distant universe (dating to an earlier cosmic epoch) whose shapes are usually disturbed or irregular, it is unexpected that J0107a looks very similar to present-day spiral galaxies," Huang said.

"Theories about the formation of present-day galactic structures may need to be revised," Huang added.

The Webb telescope, as it peers across vast distances back to the early universe, has found that galaxies with a spiral shape appeared much earlier than previously known. J0107a is now one of the earliest-known examples of a barred spiral galaxy.

About two thirds of spiral galaxies observed in the universe today possess a bar structure. The bar is thought to serve as a form of stellar nursery, bringing gas inward from the galaxy's spiral arms. Some of the gas forms what are called molecular clouds.

Gravity causes the contraction of these clouds, with small centers taking shape that heat up and become new stars.

The bar that is part of J0107a measures about 50,000 light years in length, Huang said. A light-year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).

The Webb telescope "has been studying the morphology of early massive galaxies intensely recently. However, their dynamics are still poorly understood," Saito said.