International

Oldest human relative walked upright 7 mn years ago: study

AFP

The earliest known human ancestor walked on two feet as well as climbing through trees around seven million years ago, scientists said Wednesday after studying three limb bones.

When the skull of Sahelanthropus tchadensis was discovered in Chad in 2001, it pushed back the age of the oldest known representative species of humanity by a million years.

Nicknamed “Toumai”, the nearly complete cranium was thought to indicate that the species walked on two feet because of the position of its vertebral column and other factors.

However the subject triggered fierce debate among scientists, partly due to the scarcity and quality of the available bones, with some even claiming that Toumai was not a human relative but just an ancient ape.

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In a study published in the Nature journal on Wednesday, a team of researchers exhaustively analysed a thigh bone and two forearm bones found at the same site as the Toumai skull.

“The skull tells us that Sahelanthropus is part of the human lineage,” said paleoanthropologist Franck Guy, one of the authors of the study.

The new research on the limb bones demonstrates that walking on two feet was its “preferred mode of getting around, depending on the situation,” he told a press conference.

But they also sometimes moved through the trees, he added.

– ‘Not a magical trait’ –

The leg and arm bones were found alongside thousands of other fossils in 2001, and the researchers were not able to confirm that they belonged to the same individual as the Toumai skull.

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After years of testing and measuring the bones, they identified 23 characteristics which were then compared to fossils from great apes as well as hominins — which are species more closely related to humans than chimpanzees.

They concluded that “these characteristics are much closer to what would be seen in a hominin than any other primate,” the study’s lead author Guillaume Daver told the press conference.

For example, the forearm bones did not show evidence that the Sahelanthropus leaned on the back of its hands, as is done by gorillas and chimpanzees.

The Sahelanthropus lived in an area with a combination of forests, palm groves and tropical savannahs, meaning that being able to both walk and climb through trees would have been an advantage.

There have been previous suggestions that it was the ability to walk on two feet that drove humans to evolve separately from chimpanzees, putting us on the path to where we are today.

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However the researchers emphasised that what made Sahelanthropus human was its ability to adapt to its environment.

“Bipedalism (walking on two legs) is not a magical trait that strictly defines humanity,” paleontologist Jean-Renaud Boisserie told the press conference.

“It is a characteristic that we find at the present time in all the representatives of humanity.”

– Our ‘bushy’ family tree –

Paleoanthropologist Antoine Balzeau of France’s National Museum of Natural History said the “extremely substantial” study gives “a more complete image of Toumai and therefore of the first humans”.

It also bolstered the theory that the human family tree is “bushy”, and was not like the “simplistic image of humans who follow one another, with abilities that improve over time,” Balzeau, who was not involved in the research, told AFP.

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Daniel Lieberman, a professor of human evolutionary biology at Harvard University, said in a linked paper in Nature that the study’s “authors have squeezed as much information as possible from the fossil data”.

But he added that the research will not offer “full resolution” of the debate.

Milford Wolpoff, a paleoanthropologist at the US University of Michigan cast doubt on whether Toumai is a hominin, telling AFP that “extraordinary claims require extraordinary evidence”.

Wednesday’s study was carried out by researchers from the PALEVOPRIM paleontology institute, a collaboration between France’s CNRS research centre and Poitiers University, as well as scientists in Chad.

Guy said the team hopes to continue its research in Chad next year — “security permitting”.

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Chadian paleontologist Clarisse Nekoulnang said the team was “trying to find sites older than that of Toumai”.

International

Peruvian presidential candidate proposes death penalty amid crime surge

Peru is facing an unprecedented surge in crime ahead of its presidential election scheduled for April 12, with violence fueled by extortion networks and a wave of contract killings linked to organized crime.

Police data show that 2,200 homicides tied to organized crime were recorded in 2025, while extortion complaints increased by 19%, underscoring the growing security crisis in the South American nation.

Amid this backdrop, presidential candidate Álvarez has proposed reinstating the death penalty if elected, arguing that extreme measures are needed to curb the violence.

To implement the proposal, Álvarez said Peru would withdraw from the American Convention on Human Rights—also known as the Pact of San José—which the country signed in 1978. The agreement prevents member states that have abolished capital punishment from reinstating it.

Currently, Peruvian law only allows the death penalty in cases of treason during wartime.

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“We have to leave the Pact of San José and apply the death penalty in Peru because those miserable criminals don’t deserve to live,” Álvarez told AFP during a campaign stop at a market in Callao, the port city neighboring Lima.

“An iron fist against those criminals,” he added, proposing to declare hitmen as military targets.

During the campaign event, Álvarez walked through stalls selling vegetables, groceries, and fish, greeting vendors while musicians played cumbia music nearby.

The 62-year-old candidate, who spent more than four decades working in television as a comedian, is a newcomer to politics and is running for president under the País para Todos party.

Polls place him fifth in voter preference with nearly 4% support in a fragmented race featuring 36 candidates.

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“I am an artist who has taken a step into politics to bring peace to my country,” Álvarez told reporters while surrounded by supporters.

International

FBI: Man who attacked Michigan synagogue died from self-inflicted gunshot

The man who died during Thursday’s attack on a synagogue in the United States suffered a self-inflicted gunshot wound to the head, according to the FBI.

FBI agent Jennifer Runyan told reporters that the suspect, identified as 41-year-old Lebanese citizen Ayman Mohamad Ghazali, shot himself at some point during the confrontation.

“At some point during the shooting, Ghazali suffered a self-inflicted gunshot wound to the head,” Runyan said during a press conference.

A spokesperson for the U.S. Department of Homeland Security confirmed the suspect’s identity.

Authorities said Ghazali drove a truck into the Temple Israel synagogue in West Bloomfield, located in the state of Michigan, on Thursday.

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According to Michael Bouchard, sheriff of Oakland County, synagogue security personnel noticed the vehicle and confronted the suspect with gunfire.

Investigators said it would be premature to speculate about the motive for the attack, although reports indicate Ghazali recently lost relatives during Israeli strikes in Lebanon earlier this month.

“It would be irresponsible for me to speculate about his motive,” Runyan said.

Ghazali arrived in Detroit in 2011 on a spouse visa for U.S. citizens and obtained American citizenship in 2016, according to reporting by The New York Times.

He was the father of two teenagers, divorced from his wife in 2024, and had recently been working as a waiter.

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The newspaper also reported that Ghazali attended a memorial service in the nearby city of Dearborn for relatives killed in the recent conflict, alongside other grieving family members from the Lebanese town of Machghara.

The Federal Bureau of Investigation said the incident is being investigated as an act of violence targeting the Jewish community.

A source from Michigan’s Lebanese-American community told CBS News that several of Ghazali’s relatives had been killed roughly ten days before the attack, leaving him deeply devastated.

International

Mexican Navy Ships Deliver Third Shipment of Humanitarian Aid to Cuba

Two logistics support vessels from the Mexican Navy — the ARM Papaloapan and the ARM Huasteco — docked again on Friday in the bay of Havana carrying a third shipment of humanitarian aid for Cuba.

The vessels had previously arrived on the Caribbean island on February 28 with a second cargo that included 1,200 tons of food, sent to help alleviate the country’s ongoing crisis, which has worsened following the U.S. oil restrictions affecting fuel supplies to the island.

Cuba’s deputy foreign minister Josefina Vidal confirmed the new shipment in a social media post.

“Two ships carrying a third shipment of aid from the Government and the people of Mexico for the Cuban people are now arriving at the port of Havana. Thank you Mexico for your solidarity with Cuba,” she wrote.

Previous aid shipments

During the second shipment, the Papaloapan transported 1,078 tons of beans and powdered milk, while the Huastecocarried 92 tons of beans and 23 tons of assorted food products collected by social organizations with support from the government of Mexico City.

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In recent months, Mexico has become the largest provider of humanitarian aid to Cuba, sending around 2,000 tons of supplies, mostly staple foods and hygiene products, in the two shipments prior to Friday’s delivery.

The first shipment alone included 814 tons of food.

Cuba praises Mexico’s support

Hours before the ships arrived, Cuban President Miguel Díaz-Canel highlighted Mexico’s support during a televised appearance, describing the country as “a friendly and brotherly nation that has shown tremendous solidarity,”particularly praising Mexican President Claudia Sheinbaum.

Díaz-Canel also addressed reports suggesting that Mexican donations were being resold in state-run stores, dismissing them as a “disinformation campaign” promoted by right-wing groups.