Ants are forcing lions in Kenya to change their hunting behaviour and switch prey, study finds
The spread of big-headed ants in east Africa has disrupted the life of the African lion, forcing it to make fewer zebra kills and switch its prey, scientists have found.
The presence of the insects at the Ol Pejeta Conservancy in Kenya has changed the landscape of the area, impacting plants and animals throughout the ecosystem.
According to the study, big-headed ants – thought to be native to Mauritius but which have spread throughout much of the subtropical and tropical world – have “led to increased herbivory by elephants and ultimately a shift in lion prey species from zebra to buffalo” at the reserve.
“These tiny invaders are cryptically pulling on the ties that bind an African ecosystem together, determining who is eaten and where,” said Professor Todd Palmer, a co-author of the study.
Big-headed ants. File pic: iStock
The study, which spans research over three decades, showed the complex web of interactions among ants, trees, elephants, lions, zebras and buffalo in the local savanna.
The team of researchers from the University of Florida tracked the impact of the “tiny invaders” on the wildlife conservation area in Laikipia County by using hidden cameras, satellite-linked lion collars and statistical modelling.
They found the big-headed ants attacked native acacia ants, rendering whistling thorn trees in the area vulnerable to being eaten by elephants.
This resulted in landscapes with higher visibility, the researchers said, leading to “significantly less” zebra kills by lions which rely on the tree cover to stalk and hide before pouncing on their prey.
Instead, the iconic predator switched from hunting its preferred prey to buffalo – which are larger than zebras and hang out in groups.
“Oftentimes, we find it’s the little things that rule the world,” said Prof Palmer.
“These tiny invasive ants showed up maybe 15 years ago, and none of us noticed because they aren’t aggressive toward big critters, including people.
“We now see they are transforming landscapes in very subtle ways but with devastating effects.”
He continued: “Nature is clever, and critters like lions tend to find solutions to the problems they face.
“But we don’t yet know what could result from this profound switch in the lions’ hunting strategy. We are keenly interested in following up on this story.”
Read more from Sky News:
New weight loss drug approved for use in Britain
New type of star nicknamed ‘old smokers’ discovered
Mars helicopter’s mission finally over after damage
He added: “These ants are everywhere, especially in the tropics and subtropics.
“We are working with land managers to investigate interventions, including temporarily fencing out large herbivores, to minimise the impact of ant invaders on tree populations.”
The study, which Prof Palmer described as “born of driving around in Land Rovers in the mud for 30 years”, has been published in the journal, Science.
Donald Trump’s Middle East envoy has met Israel’s prime minister in an effort to secure a ceasefire deal in Gaza before the president-elect takes office on 20 January.
Benjamin Netanyahu’s office confirmed details of the meeting with Steve Witkoff on Saturday, adding that the head of the Israeli Mossad intelligence agency has been deployed to Qatar in order to “advance” talks.
It was not immediately clear when David Barnea would travel to Doha for the latest round of indirect discussions between Israel and Hamas.
Earlier on Saturday, an Israeli official said some progress had been made, mediated by Egypt, Qatar and the United States, to reach a deal in Gaza.
Ronen Bar (left), director of Israel’s security agency, and David Barnea (right), head of Mossad, at a ceremony marking the 7 October Hamas attack. File pic: Reuters
The mediators are making renewed efforts to halt fighting in Gaza and free the remaining Israeli hostages held there before Mr Trump takes office.
A deal would also involve the release of some Palestinian prisoners held in Israeli jails.
Families of Israeli hostages welcomed Mr Netanyahu’s decision to dispatch the officials, with the Hostages and Missing Families Forum Headquarters describing it as a “historic opportunity”.
Mr Witkoff arrived in Doha on Friday and met the Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani, Qatar’s foreign ministry said.
Egyptian and Qatari mediators received reassurances from Mr Witkoff that the US would continue to work towards a fair deal to end the war soon, Egyptian security sources said, though no further details were released.
Read more from Sky News:
Why does Donald Trump want Greenland?
Trump says Vladimir Putin wants to meet
A guide to Donald Trump’s inauguration
Israel launched its assault on Gaza after Hamas fighters stormed across its borders in October 2023, killing 1,200 people and taking more than 250 hostages, according to Israeli figures.
Families of the roughly 100 hostages still held in Gaza are pressing Mr Netanyahu to reach a deal to bring their loved ones home.
Since then, more than 46,000 people have been killed in Gaza, according to Palestinian health officials, with much of the area destroyed and gripped by a humanitarian crisis, with most of its population displaced.
Pope Francis has been honoured with America’s highest civilian award by President Joe Biden, who has described the pontiff as “a light of faith, hope, and love that shines brightly across the world”.
It is the first time Mr Biden, 82, has given the Presidential Medal of Freedom with Distinction during his four years in office.
In a statement, the White House said the award is “presented to individuals who have made exemplary contributions to the prosperity, values, or security of the United States, world peace, or other significant societal, public or private endeavours”.
Mr Biden had been scheduled to present the medal to Pope Francis, 88, in person on Saturday in Rome on what was to be the final overseas trip of his presidency. But the president cancelled his visit to monitor the California wildfires.
The White House said Mr Biden bestowed the award during a phone call in which they also discussed efforts to promote peace and alleviate suffering around the world.
President Joe Biden presented Bono with the Presidential Medal of Freedom. Pic: AP
Denzel Washington was also recognised. Pic: AP
Michael J Fox was bestowed with the honour. Pic: AP
The award can be presented with or without distinction.
Mr Biden presented the medal of freedom – without distinction – on 5 January to several people including fellow Democrat Hillary Clinton, humanitarian and U2 singer Bono, fashion designer Ralph Lauren and actors Michael J Fox and Denzel Washington.
Please use Chrome browser for a more accessible video player
‘I could have beaten Trump’
Read more from Sky News:
Gay men can become priests
Search widened for missing sisters
Carrie Johnson left ‘struggling to breathe’
Mr Biden himself is a recipient of the award with distinction, recognised when he was vice president by then president Barack Obama in a surprise ceremony eight years ago.
Barack Obama presented Joe Biden with the Presidential Medal of Freedom with Distinction in 2017. File pic: AP
The citation for the pope’s honour said his “mission of serving the poor has never ceased”.
“A loving pastor, he joyfully answers children’s questions about God. A challenging teacher, he commands us to fight for peace and protect the planet. A welcoming leader, he reaches out to different faiths,” it added.
Ukraine has captured two North Korean soldiers fighting in Russia’s Kursk region, President Volodymyr Zelenskyy has said.
The injured pair are now in Kyiv and communicating with the Security Service of Ukraine, the country’s domestic intelligence agency, he said.
Ukrainian special forces and paratroopers captured the North Koreans, Mr Zelenskyy said in a post on X.
“As with all prisoners of war, these two North Korean soldiers are receiving the necessary medical assistance,” he said.
“I have instructed the Security Service of Ukraine to grant journalists access to these prisoners.
“The world needs to know the truth about what is happening.”
Mr Zelenskyy said capturing the soldiers alive was “not easy”. He also claimed Russian and North Korean forces fighting in Kursk have tried to conceal the presence of North Korean soldiers, including by killing wounded comrades on the battlefield to avoid their capture and interrogation by Ukraine.
The post included images of the two men – one with a bandage around his jaw and the other around both hands and wrists – and what appeared to be a Russian military document.
Please use Chrome browser for a more accessible video player
Ukrainian drone targets Kursk soldiers
Ukraine’s security service SBU on Saturday provided further details.
It said one of those detained had no documents at all, while the other had been carrying a Russian military ID card in the name of a man from Tuva, a Russian region bordering Mongolia.
“The prisoners do not speak Ukrainian, English or Russian, so communication with them takes place through Korean translators in cooperation with South Korean intelligence,” a statement said.
One of the soldiers claimed he had been told he was going to Russia for training, rather than to fight against Ukraine, according to the SBU.
The agency added both men are being provided with medical care in line with the Geneva Conventions, and investigated “in cooperation with South Korean intelligence”.
Read more:
Ukraine launches new offensive in Russia’s Kursk region
Russia and Ukraine swap at least 300 prisoners of war
North Korean regular troops entered the war on Russia’s side in October, according to Ukraine and its Western allies.
US, South Korean and Ukrainian intelligence assessments suggest up to 12,000 North Korean combat troops have been sent by Pyongyang under a pact with Moscow.
They believe North Korea has also been supplying Russia with vast quantities of artillery shells.
-
Sports2 years ago‘Storybook stuff’: Inside the night Bryce Harper sent the Phillies to the World Series
-
Sports9 months agoStory injured on diving stop, exits Red Sox game
-
Sports1 year agoGame 1 of WS least-watched in recorded history
-
Sports2 years agoMLB Rank 2023: Ranking baseball’s top 100 players
-
Sports3 years ago
Team Europe easily wins 4th straight Laver Cup
-
Environment2 years agoJapan and South Korea have a lot at stake in a free and open South China Sea
-
Environment2 years agoGame-changing Lectric XPedition launched as affordable electric cargo bike
-
Business2 years agoBank of England’s extraordinary response to government policy is almost unthinkable | Ed Conway