Yawning Helps Lions Synchronize Groups' Movements

A lion yawns at a nature reserve on the outskirts of Pretoria June 29, 2010. ENRIQUE MARCARIAN/REUTERS
A lion yawns at a nature reserve on the outskirts of Pretoria June 29, 2010. ENRIQUE MARCARIAN/REUTERS
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Yawning Helps Lions Synchronize Groups' Movements

A lion yawns at a nature reserve on the outskirts of Pretoria June 29, 2010. ENRIQUE MARCARIAN/REUTERS
A lion yawns at a nature reserve on the outskirts of Pretoria June 29, 2010. ENRIQUE MARCARIAN/REUTERS

Watching a group of lions yawn may seem like nothing more than big, lazy cats acting sleepy, but new research suggests that these yawns may be subtly communicating some important social cues. Yawning is not only contagious among lions, but it appears to help the predators synchronize their movements, researchers report in the journal Animal Behavior.

The discovery was partially made by chance, says Elisabetta Palagi, an ethologist at the University of Pisa in Italy. While studying play behavior in spotted hyenas in South Africa, she and colleagues often had the opportunity to watch lions at the same time. And she quickly noticed that lions yawn quite frequently, concentrating these yawns in short time periods, according to the German News Agency. Yawning is ubiquitous among vertebrates, possibly boosting blood flow to the skull, cooling the brain, and aiding alertness, especially when transitioning in and out of rest, the Science News website reported. In many species — like humans, monkeys, and even parakeets— yawners can infect onlookers with their "yawn contagion," leading onlookers to yawn shortly afterward.

Over four months in 2019, the researchers closely monitored 19 lions at the Greater Makalali Private Game Reserve. The team found that lions that saw another member of the pride yawn were about 139 times as likely to yawn themselves within the next three minutes. But the yawn contagion didn't stop there. Lions that caught a yawn from another lion were 11 times as likely to mirror the movements of the original yawner than those that hadn't. This motor synchrony" involved one lion yawning, then another yawning, then the first getting up and walking around or laying back down and the other doing the same thing.

In lions, contagious yawning might be important for maintaining social cohesion, Palagi says. Yawns that help lions harmonize their group movements could help get the pride all on the same page, crucial behavior for an animal that hunts and rears offspring cooperatively. Palagi notes that yawning often marks a shift between different physiological or emotional states. So, a yawn could be a good way for an individual in a social species to communicate to group mates that it is experiencing some kind of internal change.



Wuhan Keen to Shake off Pandemic Label Five Years On

A man wearing a face mask looks over a barricade set up to keep people out of a residential compound in Wuhan in China's central Hubei province on April 14, 2020. (AFP)
A man wearing a face mask looks over a barricade set up to keep people out of a residential compound in Wuhan in China's central Hubei province on April 14, 2020. (AFP)
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Wuhan Keen to Shake off Pandemic Label Five Years On

A man wearing a face mask looks over a barricade set up to keep people out of a residential compound in Wuhan in China's central Hubei province on April 14, 2020. (AFP)
A man wearing a face mask looks over a barricade set up to keep people out of a residential compound in Wuhan in China's central Hubei province on April 14, 2020. (AFP)

Built in just days as Covid-19 cases spiked in Wuhan in early 2020, the Huoshenshan Hospital was once celebrated as a symbol of the Chinese city's fight against the virus that first emerged there.

The hospital now stands empty, hidden behind more recently built walls -- faded like most traces of the pandemic as locals move on and officials discourage discussion of it.

On January 23, 2020, with the then-unknown virus spreading, Wuhan sealed itself off for 76 days, ushering in China's zero-Covid era of strict travel and health controls and foreshadowing the global disruption yet to come.

Today, the city's bustling shopping districts and gridlocked traffic are a far cry from the empty streets and crammed emergency rooms that marked the world's first Covid lockdown.

"People are moving forward, these memories are getting fuzzier and fuzzier," Jack He, a 20-year-old university student and Wuhan local, told AFP.

He was in high school when the lockdown was imposed, and he spent much of his sophomore year taking online classes from home.

"We still feel like those few years were especially tough... but a new life has started," He said.

- Official silence -

At the former site of the Huanan Seafood Wholesale Market, where scientists believe the virus may have crossed over from animals to humans, a light blue wall has been built to shield the market's closed-down stalls from view.

When AFP visited, workers were putting up Chinese New Year decorations on the windows of the market's second floor, where a warren of opticians' shops still operates.

There is nothing to mark the location's significance -- in fact, there are no major memorials to the lives lost to the virus anywhere in the city.

Official commemorations of Wuhan's lockdown ordeal focus on the heroism of doctors and the efficiency with which the city responded to the outbreak, despite international criticism of the local government's censorship of early cases in December 2019.

The market's old produce stalls have been moved to a new development outside the city center, where it was clear that the city was still on edge about its reputation as the cradle of the pandemic.

Over a dozen vendors at the aptly named New Huanan Seafood Market refused to speak about the market's past.

The owner of one stall told AFP on condition of anonymity that "business here is not what it was before".

Another worker said the market's managers had sent security camera footage of AFP journalists out to a mass WeChat group of stall owners and warned them against speaking to the reporters.

- 'City of heroes'-

One of the few remaining public commemorations of the lockdown is next door to the abandoned Huoshenshan hospital -- an unassuming petrol station that doubles as an "anti-Covid-19 pandemic educational base".

One wall of the station was dedicated to a timeline of the lockdown, complete with photographs of President Xi Jinping visiting Wuhan in March 2020.

An employee told AFP that a small building behind the facility's convenience store housed another exhibit, but it was only open "when leaders come to visit".

But days before the fifth anniversary of the lockdown, those memories seemed far away, the city now a hive of activity.

Locals thronged the Shanhaiguan Road breakfast market, munching on bowls of noodles and deep-fried pastries.

In the upmarket Chuhe Hanjie shopping street, people walked dogs and promenaded in designer outfits while others queued to pick up bubble tea orders.

Chen Ziyi, a 40-year-old Wuhan local, said she believed the city's increased prominence has actually had a positive impact, with more tourists visiting.

"Now everyone pays more attention to Wuhan," she said. "They say Wuhan is the city of heroes."