Experts in the US fear a rising number of “super pigs” that are proving tough to eradicate could invade northern states.
As a cross-breed combining the Eurasian boar’s survival skills with the size and fertility of domestic swine in Canada, the “super pig” is described as an “ecological train wreck”.
Professor Ryan Brook, one of Canada’s authorities on the issue, added they are the “most invasive animal on the planet”, with the swine capable of spreading disease and devastating crops and wildlife.
“Nobody should be surprised when pigs start walking across that border, if they haven’t already,” Professor Brook said.
“The question is: what will be done about it?”
Northern states like Minnesota, North Dakota and Montana are taking steps to stop the invasion, but it isn’t easy to control the spiralling population.
The pigs are smart and furry, giving them the edge to survive Canadian winters, and they reproduce extremely quickly.
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One sow can have six piglets in a litter and raise two litters in a year – which means that even if authorities managed to eliminate 65% of the population each year, they’d still grow.
And hunting could make the problem worse, according to Professor Brook, with the success rate for hunters only about 2- 3%.
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Image: The pigs are described as the most invasive animal on the planet. Pic: St. Louis Post-Dispatch via AP
Several states have also banned hunting because it makes the pigs more wary and nocturnal, which makes them tougher to track down.
Instead, methods under consideration are ground traps – like the so-called “BoarBuster” – or net guns fired from helicopters.
Some states have also adopted crowdsourced “Squeal on Pigs” tracking programs, while scientists have studied poisons such as sodium nitrite, but they risk harming other species.
“The only path forward is you have to be really aggressive and you have to use all the tools in the toolbox,” Professor Brook said.
The animals are not native to North America, but have roamed there for centuries.
The problems in Canada date back to the 1980s, when farmers were encouraged to raise wild boar, before the market collapsed in 2001 and some frustrated farmers simply set the animals free.
Donald Trump has described crucial trade talks with Chinese President Xi Jinping as “amazing” – and says he will visit Beijing in April.
The leaders of the world’s two biggest economies met in South Korea as they tried to defuse growing tensions – with both countries imposing aggressive tariffs on exports since the president’s second term began.
Aboard Air Force One, Mr Trump confirmed tariffs on Chinese goods exported to the US will be reduced, which could prove much-needed relief to consumers.
It was also agreed that Beijing will work “hard” to stop fentanyl flowing into the US.
Semiconductor chips were another issue raised during their 100-minute meeting, but the president admitted certain issues weren’t discussed.
“On a scale of one to 10, the meeting with Xi was 12,” he told reporters en route back to the US.
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‘Their handshake was almost a bit awkward’
Xi a ‘tough negotiator’, says Trump
The talks conclude a whirlwind visit across Asia – with Mr Trump saying he was “too busy” to see Kim Jong Un.
However, the president said he would be willing to fly back to see the North Korean leader, with a view to discussing denuclearisation.
Mr Trump had predicted negotiations with his Chinese counterpart would last for three or four hours – but their meeting ended in less than two.
The pair shook hands before the summit, with the US president quipping: “He’s a tough negotiator – and that’s not good!”
It marks the first face-to-face meeting between both men since 2019 – back in Mr Trump’s first term.
Image: Donald Trump and Xi Jinping. Pic: AP
There were signs that Beijing had extended an olive branch to Washington ahead of the talks, with confirmation China will start buying US soybeans again.
American farmers have been feeling the pinch since China stopped making purchases earlier this year – not least because the country was their biggest overseas market.
Chinese stocks reached a 10-year high early on Thursday as investors digested their meeting, with the yuan rallying to a one-year high against the US dollar.
Analysis: A fascinating power play
Sky News Asia correspondent Helen-Ann Smith – who is in Busan where the talks took place – said it was fascinating to see the power play between both world leaders.
She said: “Trump moved quickly to dominate the space – leaning in, doing all the talking, even responding very briefly to a few thrown questions.
“That didn’t draw so much as an eyebrow raise from his counterpart, who was totally inscrutable. Xi does not like or respond well to unscripted moments, Trump lives for them.”
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Will Trump really run for a third term?
On Truth Social, Mr Trump had described the summit as a gathering of the “G2” – a nod to America and China’s status as the world’s two biggest economies.
While en route to see President Xi, he also revealed that the US “Department of War” has now been ordered to start testing nuclear weapons for the first time since 1992.
Tens of thousands of people have been killed in the Sudanese city of Al Fashir by the Rapid Support Forces (RSF) in a two-day window after the paramilitary group captured the regional capital, analysts believe.
Sky News is not able to independently verify the claim by Yale Humanitarian Labs, as the city remains under a telecommunications blackout.
Stains and shapes resembling blood and corpses can be seen from space in satellite images analysed by the research lab.
Image: Al Fashir University. Pic: Airbus DS/2025
Image: Al Fashir University. Pic: Airbus DS/2025
Nathaniel Raymond, executive director of Yale Humanitarian Labs, said: “In the past 48 hours since we’ve had [satellite] imagery over Al Fashir, we see a proliferation of objects that weren’t there before RSF took control of Al Fashir – they are approximately 1.3m to 2m long which is critical because in satellite imagery at very high resolution, that’s the average length of a human body lying vertical.”
Mini Minawi, the governor of North Darfur, said on X that 460 civilians have been killed in the last functioning hospital in the city.
The Sudan Doctors Network has also shared that the RSF “cold-bloodedly killed everyone they found inside Al Saudi Hospital, including patients, their companions, and anyone else present in the wards”.
World Health Organisation (WHO) chief Dr Tedros Adhanom Ghebreyesus said it was “appalled and deeply shocked” by the reports.
Satellite images support the claims of a massacre at Al Saudi Hospital, according to Mr Raymond, who said YHL’s report detailed “a large pile of them [objects believed to be bodies] against a wall at one building at Saudi hospital. And we believe that’s consistent with reports that patients and staff were executed en masse”.
In a video message released on Wednesday, RSF commander Mohamed Hamdan Dagalo acknowledged “violations in Al Fashir” and claimed “an investigation committee should start to hold any soldier or officer accountable”.
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Army soldiers ‘fled key Sudan city’ before capture
Image: The Saudi Maternity Hospital in Al Fashir. Pic: Airbus DS /2025 via AP
The commander is known for committing atrocities in Darfur in the early 2000s as a Janjaweed militia leader, and the RSF has been accused of carrying out genocide in Darfur 20 years on.
Sources have told Sky News the RSF is holding doctors, journalists and politicians captive, demanding ransoms from some families to release their loved ones.
One video shows a man from Al Fashir with an armed man kneeling on the ground, telling his family to pay 15,000. The currency was not made clear.
In some cases, ransoms have been paid, but then more messages come demanding that more money be transferred to secure release.
Muammer Ibrahim, a journalist based in the city, is currently being held by the RSF, who initially shared videos of him crouched on the ground, surrounded by fighters, announcing his hometown had been captured under duress.
He is being held incommunicado as his family scrambles to negotiate his release. Muammer courageously covered the siege of Al Fashir for months, enduring starvation and shelling.
The Committee to Protect Journalists regional director Sara Qudah said the abduction of Muammar Ibrahim “is a grave and alarming reminder that journalists in Al Fashir are being targeted simply for telling the truth”.