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.
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.
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.
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.
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”.
Chadian paleontologist Clarisse Nekoulnang said the team was “trying to find sites older than that of Toumai”.
International
China calls for dialogue amid rising Iran-Israel conflict
The Chinese government emphasized on Monday the importance of “creating the conditions to return to the proper path of dialogue” between Iran and Israel, which have exchanged attacks in recent days resulting in more than 20 Israeli and over 220 Iranian deaths.
Chinese Foreign Ministry spokesperson Guo Jiakun expressed deep concern at a press conference over the Israeli attacks on Iran and the “sudden escalation” of the military conflict.
Guo called on all parties to “take immediate measures to ease tensions and prevent the region from descending into further turmoil,” stating that “force cannot bring lasting peace.”
“If the conflict between Israel and Iran continues to intensify or even expand, the countries of the Middle East will be the first to suffer the consequences,” he added, while noting that China “will continue to maintain communication with the relevant parties, promoting peace and dialogue.”
Chinese Foreign Minister Wang Yi spoke last Saturday with his Iranian and Israeli counterparts to condemn the Israeli airstrike on Iranian territory, which he described as a “violation of international law” with the potential to trigger “disastrous” consequences.
In both calls, Wang reiterated China’s rejection of the use of force, defended diplomacy as the only solution to the Iranian nuclear dispute, and offered China’s mediation to prevent further destabilization in the Middle East.
International
Suspect arrested in killing of Minnesota legislator and husband, governor Says
Minnesota Governor Tim Walz announced on Sunday the arrest of Vance Luther Boelter, 57, the main suspect in the killing of Democratic legislator Melissa Hortman and her husband in a Brooklyn Park suburb on Friday night.
Boelter, who also reportedly shot State Senator John Hoffman and his wife early Saturday morning, was apprehended in Sibley County following an intensive manhunt involving hundreds of law enforcement officers.
In a public statement, Governor Walz condemned Boelter’s “unthinkable actions,” which resulted in the death of a woman who “shaped the core of who we are as a state.”
“We cannot become numb to this. We are a deeply divided nation,” Walz said in a statement posted on his X account.
“We move forward not with hatred or violence, but with humility, grace, and civility,” he added.
Expressing solidarity with the victims’ families, Walz said the entire state of Minnesota is in mourning. He also thanked law enforcement for their bravery and professionalism: “They have saved lives,” he emphasized.
“As we heal, we will not let fear win,” Walz concluded. “We must honor Melissa by moving forward with understanding, service, and above all, humanity.”
Throughout Sunday, police and sheriff units searched a rural area in Minnesota for Vance Luther Boelter, a security company director and preacher who, according to Governor Walz, acted out of politically motivated violence.
International
40,000 tourists stranded in Israel amid airspace shutdown over Iran conflict
Approximately 40,000 tourists are stranded in Israel following the closure of the country’s airspace amid escalating hostilities with Iran, the Israeli Ministry of Tourism reported on Monday.
The ministry has set up a virtual office to provide information via email (virtual@goisrael.gov.il) and phone (+972-53-583-5808), as well as a Facebook page called Israel Virtual Tourist Office.
Israeli Tourism Minister Haim Katz is in contact with hotels and accommodations across the country to offer support to tourists in need, the ministry added.
Many stranded travelers are considering crossing overland into Jordan or Egypt to seek flights from those countries. The Israel Airports Authority reminded the public that land border crossings remain open.
Three German tourists stranded in Jerusalem told EFE today that they have not received any assistance from their country’s embassy in Israel, and their primary option currently is to cross into Jordan to catch a flight from there.
Since early Friday morning, Israel launched operations against Iran, targeting military personnel and infrastructure, including energy and nuclear facilities, as well as numerous residential areas in Tehran.
In response, Iran has fired hundreds of ballistic missiles at Israel, some of which have struck various locations across the country, leaving at least 24 dead so far, according to Israeli authorities.
Iranian health officials report at least 224 deaths, mostly civilians, including at least 17 senior military officials—nine from the Revolutionary Guard—and more than a dozen nuclear scientists.
The Israeli military has warned that many more “targets” remain, while Iran’s Revolutionary Guard declared on Monday that it will continue missile attacks against Israel until its “destruction.”
China calls for dialogue amid rising Iran-Israel conflict
Suspect arrested in killing of Minnesota legislator and husband, governor Says
40,000 tourists stranded in Israel amid airspace shutdown over Iran conflict
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
Defense Minister commends salvadoran soldier for Central American Cross Country victory
Extension of the state of emergency approved in southern Chile
-
International4 days agoOne survivor confirmed after Air India flight crashes with 242 on board
-
International4 days agoShark attacks child in Florida
-
International4 days agoOver 200 dead after London-Bound plane crashes in India
-
International4 days agoUncle Sam used in DHS poster calling for public to report immigrants
-
International3 days agoChina shows at the UN its “condemnation” of Israel for the “violation of Iran’s sovereignty”
-
International4 days agoAt least five others involved in attack on Miguel Uribe Turbay
-
International4 days agoHegseth dodges lawmakers’ questions on potential U.S. invasion plans for Greenland, Panama
-
International3 days agoICE under fire for detaining undocumented teen from Florida foster care
-
International4 days agoArgentine government says Cristina Fernández sentence was fair and free of political influence
-
International3 days agoDonald Trump’s government pauses its program of indiscriminate raides against migrants
-
Central America1 day agoNicaraguan exile coalition urges Costa Rica to receive U.S. deportees fleeing Ortega regime
-
International3 days agoTrump says he knew “everything” about the attack on Iran and assures that the dialogue remains open
-
International3 days agoIsrael warns of retaliation after iranian missiles hit civilian areas
-
Central America10 hours agoGuatemala cracks down on prison corruption with over 20 raids in recent weeks
-
International3 days agoRight and far right leaders aspire to win the next elections in Latin America
-
International4 days agoEight Killed in Gaza as Hamas allegedly attacks Israel-Backed aid group
-
Central America1 day agoFirst woman elected president in the Americas, Violeta Chamorro, dead at 95
-
International3 days agoCalifornia sues Trump over deployment of military forces in immigration arrests
-
International10 hours agoChina calls for dialogue amid rising Iran-Israel conflict
-
International3 days agoMore than 2,000 protests in the US will condemn Donald Trump’s “authoritarianism” this Saturday
-
International10 hours agoJudge to rule next week on injunction against Trump’s student visa restrictions
-
International10 hours agoSuspect arrested in killing of Minnesota legislator and husband, governor Says
-
International3 days agoCriticism of ICE in Florida for arresting a minor from Honduras and taking him away from a foster family
-
International10 hours agoTrump directs ICE to focus deportation efforts on democratic-led states
-
International10 hours ago40,000 tourists stranded in Israel amid airspace shutdown over Iran conflict
-
International10 hours ago
Israeli strike targets Iran’s state news agency amid escalating conflict
-
International10 hours agoNetanyahu: Israel is ‘changing the face of the Middle East’ amid Iran strikes