Just a handful of ancient teeth uncovered in Ethiopia is rewriting what we know about human origins. The fossils, dated between 2.6 and 2.8 million years old, were found at the Ledi-Geraru site in Ethiopia's Afar region.

Addis Ababa

A set of ancient teeth discovered at the Lirigarara site in Ethiopia has provided new insights into human evolution. The fossils, dated between 2.6 and 2.8 million years old, are believed to belong to a previously unknown species of Australopithecus. This finding suggests that there was greater diversity in early human ancestors than previously understood, with multiple species potentially coexisting in Eastern Africa during a crucial period of evolutionary history.

Researchers highlight that this discovery challenges the traditional view of a simple, linear progression from Australopithecus to Homo sapiens. Instead, the evidence points to a more complex evolutionary landscape, with overlapping species and increased diversity. Scientists note that further fossil discoveries are needed before the new species can be formally named, but the find already offers significant new perspectives on the origins of humanity.

Fossil discovery in Ethiopia reveals missing chapter in human evolution

Just a handful of ancient teeth, uncovered in Ethiopia, is rewriting what we know about human origins. The fossils, dated between 2.6 and 2.8 million years old, were found at the Lirigarara site, not far from where the famous Lucy skeleton was discovered. Scientists say the teeth belonged to a previously unknown species of Astrolopithecus, giving new complexity to the human evolutionary story. What makes it special and new is the exciting discovery that there is more diversity in the human lineage, in our origin, in our ancestry, than we originally thought at this particular time. So between about 3 million and 2.5 million years ago, a lot of exciting things are happening. The Astrolopithecus is ape-like in appearance, but with human characteristics like walking on two legs. The discovery shows that the species may have existed at the same time as some of the earliest Homo sapiens, challenging the idea that human evolution was a simple, linear process. The biggest excitement is around the fact that there's more than just one or two or possibly even three species of Astrolopithecus here in Eastern Africa, and that this sort of idea that Homo evolves because the climate is changing, our lineage evolves because the climate is changing and there's something special about us at that point, maybe isn't supported by data because there's this other genus, Astrolopithecus, that's also still there. So it just really adds to the diversity and the complexity, which makes the whole scientific enterprise more interesting. It's boring if there's just one evolving into the next one, evolving into the next one. But if there are three around and they're overlapping, that makes the questions really great to ask. The researchers say more fossils are needed before formally naming the species. But the find sheds new light on a pivotal moment in our evolutionary past.

Israel's military has called up tens of thousands of reservists in preparation for an expected assault on Gaza City, as the Israeli government considered a new proposal for a ceasefire after nearly two years of war.

Jerusalem

Middle East Conflict

Israel calls up 60,000 reservists ahead of Gaza City operation

The Trump administration says it is adding 407 items to the list of "derivative" steel and aluminum products subject to higher tariffs. The list includes products like car parts, household appliances, baby strollers, fire extinguishers and spray deodorants.

Washington

Global Tariffs

Trump expanding steel and aluminum tariffs

NATO military chiefs met virtually Wednesday for what was described as a candid discussion about security guarantees the alliance would be willing to provide to Ukraine in an effort to end Russia's war in the region.

Brussels

Ukraine Invasion

NATO chiefs meet virtually about potential Ukraine security guarantees

Israel's military leaders approved the next phase of their ongoing offensive in the territory. The operation will shift focus to Gaza City, targeting areas where Hamas is believed to still be active and where Israeli forces have not yet operated.

Israel approves next phase of Gaza offensive, focus on Gaza City

Despite not making landfall, Hurricane Erin is forcing mandatory evacuation orders in parts of North Carolina and is expected to cause rip currents for days along the U.S. East Coast.

North Carolina

Hurricane Erin forces evacuations on U.S. East Coast

The White House says it is working to secure a meeting between the presidents of Russia and Ukraine, which both have agreed to, while plans continue to create security guarantees for Ukraine.

Trump says no U.S. ground troops will be sent to Ukraine

Hamas has agreed to a ceasefire proposal for Gaza, but mediators are still waiting for an official response from Israel. CBS News contributor Robert Berger has the latest from Jerusalem.

Mediators await Israeli response to Gaza ceasefire proposal

Indian Prime Minister Narendra Modi met China’s top diplomat on Tuesday and hailed the “steady progress” made in improving the bilateral relationship after a yearslong standoff between the nuclear-armed Asian powers.

New Delhi

India's Modi meets China's foreign minister to rebuild ties

Texas Democrats who ended a walkout found themselves shadowed by law enforcement officers to keep them from repeating the protest that stalled Republican efforts to redraw congressional districts and fulfill President Donald Trump's desire to reshape U.S. House maps.

Austin

Police escort Texas Democrats to prevent new redistricting walkout

Air Canada has reached a tentative agreement with the Canada Industrial Relations Board (CIRB), ending the strike that began over the weekend involving 10,000 members and disrupted travel for more than 100,000 travelers per day.

Toronto

Air Canada reaches tentative agreement with flight attendant union

Exiled former Hong Kong lawmaker Ted Hui hailed Australia's grant of asylum status as a key acknowledgement of the territory's human rights infringements since its authorities quelled massive pro-democracy protests in 2019.

Hong Kong Island

Ex-Hong Kong lawmaker granted asylum by Australia

Forecasters are giving urgent warnings to millions of people who live along the East Coast as Hurricane Erin churns in the Atlantic. The storm will not make direct landfall but is expected to bring dangerous rip currents.

East Coast of the United States

Hurricane Erin to bring dangerous rip currents to U.S. East Coast

Jasveen Sangha, a Los Angeles woman known as the "Ketamine Queen," has agreed to plead guilty to federal charges in connection with the death of actor Matthew Perry. Sangha could face up to 45 years in prison.

Los Angeles

"Ketamine Queen" to plead guilty in Matthew Perry's death

European leaders who converged on the White House for talks on the Russia-Ukraine war demonstrated a united front regarding Ukraine's security on Monday, underscoring the issue as pivotal for the entire continent, not just Ukraine.

EU leaders show cautious optimism following Zelenskyy, Trump talks

As Hamas reportedly agreed to some ceasefire terms that would include the return of more hostages, Israeli Prime Minister Benjamin Netanyahu ordered troops to take more of Gaza.

Israel digs in on Gaza takeover as Hamas softens on ceasefire

President Donald Trump said that the United States would help Europe in providing security for Ukraine as part of any deal to end Russia's war in Ukraine.

Trump tells Zelenskyy U.S. would help with security in a peace deal

Bolivia's presidential vote headed to an unprecedented runoff after elections Sunday that ended more than two decades of left-wing dominance in the Andean nation but signaled voters' trepidation about a major lurch to the right.

La Paz

Bolivia heads to runoff after historic defeat for the left

All Air Canada planes were grounded on Monday (August 18) after its 10,000 flight attendants refused a return-to-work mandate from the Canadian government.

Air Canada delays plans to resume operations

Ukrainian President Volodymyr Zelenskyy arrived at the White House Monday (August 18) for his meeting with President Donald Trump and other European leaders about Russia's war in Ukraine. CBS News White House reporter Taurean Small has more.

Trump meeting with Zelenskiy, European leaders at White House

Hamas on Monday informed mediators that it had accepted a ceasefire deal proposal submitted to it the day before, according to international and Israeli outlets.

Reports: Hamas accepts latest Gaza ceasefire proposal

Hurricane Erin will bring dangerously rough surf to parts of the U.S. East Coast. Over the weekend, Erin's outer bands lashed Puerto Rico with up to 7 inches of rain and flooding parts of the island.

Erin expected to bring dangerous conditions to U.S. East Coast

Ahead of his Monday meeting with President Trump, Ukrainian President Volodymry Zelenksyy says his country will not give up any territory to Russia, even as the White House insists potential land swaps will be necessary. Willie James Inman reports.

Kyiv

Ahead of Trump meeting, Zelenskyy says won't give territory to Russia

Thousands of Israeli protesters demanded a deal to secure the release of hostages still held by Hamas in one of the biggest demonstrations since the war in Gaza began. Debora Patta reports.

Thousands of Israelis protest in Gaza, call for end to fighting

Ukrainian President Volodymyr Zelenskyy flies to Washington on Monday under heavy U.S. pressure to agree to a swift end to Russia's war in his country, but determined to defend Kyiv's interests — without sparking a second Oval Office dust-up with Donald Trump.

Zelenskyy, European allies to meet with Trump to discuss peace

European leaders voiced strong support for Ukraine ahead of a Washington summit with U.S President Donald Trump. They emphasized unity, territorial integrity and security guarantees as essential to any peace deal.

Paris

European leaders stress unity with Ukraine ahead of peace talks

International condemnation and pressure from allies have done nothing to stop Israel's plan to displace the people of northern Gaza. Israel on Saturday (August 16) said it is preparing to move Palestinians from combat zones to southern Gaza.

Israeli military prepares to move Palestinians to southern Gaza

Thousands of people took to the streets on Sunday in a nationwide strike amid fears further fighting could endanger the 50 hostages believed to still be in Gaza.

Tel Aviv-Yafo

Dozens of Israelis arrested in protest to demand end to Gaza war

Russia continues to target Ukrainian cities firing hundreds of missiles and projectiles daily despite ongoing peace efforts, led by the United States. Ukrainian officials say their unwillingness to dial back their offensive reflects their lack of sincere interest in peace.

Five killed as Russia continues to pummel Ukrainian cities

U.S. President Donald Trump said that Ukraine should make a deal to end the war with Russia because "Russia is a very big power, and they're not," after a summit where Vladimir Putin was reported to have demanded more Ukrainian land.

Breakdown