Fossils found at Dinosaur National Monument, first excavation in 100 years
The Dinosaur National Monument, which is located on the border between Colorado and Utah, was last excavated in 1924.
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The Dinosaur National Monument, which is located on the border between Colorado and Utah, was last excavated in 1924.
Most of the footprints are elongated and made by bipeds. The best-preserved ones bear traces of at least four toes.
Paleontologists have discovered and documented 16,600 footprints left by theropods, the dinosaur group that includes the Tyrannosaurus rex.
The discovery "rewrites decades of research on Earth's most famous predator," the study's co-author said.
Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction.
The new find was possibly 23 feet long and hailed from a mysterious group of dinosaurs called megaraptorans.
"Spicomellus is one of the strangest dinosaurs that we've ever discovered," the project's leader said.
Apex predators, like the Tyrannosaurus rex, eventually arose from smaller-bodied tyrannosauroid dinosaurs called Khankhuuluu mongoliensis, the study's researchers said.
Scientists at a Dallas-based biotech company has unveiled a genetically engineered woolly mouse that they hope is a step toward eventually bringing back the wooly mammoth. The results haven't yet been published or vetted by independent scientists.
A paleontologist hailed the discovery as "truly an unusual find," adding it helped explain the relationships in the prehistoric food chain.
It is hoped the discovery will provide clues about how dinosaurs interacted, as well as their size and the speeds at which they moved.
Footprints dating back 120 million years show where dinosaurs were able to cross between land that's now part of two different continents.
The buyer intends to keep the fossil in the U.S., and is exploring making it available for public display.
The dinosaur fossil of a Stegosaurus nicknamed Apex fetched 10 times its estimate at a Sotheby's auction on Wednesday.
The largest stegosaurus skeleton ever found is expected to fetch millions of dollars at auction in New York next week, likely fueling objections from paleontologists.
A 150 million-year-old dinosaur skeleton found in Wyoming is on display in Denmark – after briefly being lost in transit.
Iran war could escalate further as Trump threatens to hit key oil infrastructure if Tehran doesn't drop its chokehold on the Strait of Hormuz.
"One Battle After Another" took home several big awards, including Best Picture, Best Director and the newly created Best Casting.
The Iran war is testing the U.S. military's ability to combat Iran's drones in a cost-effective way. Emerging laser tech, designed to zap drones out of the sky, may help.
U.S. intelligence has circulated to President Trump's inner circle that Iran's late supreme leader had misgivings about his son replacing him, viewing Ayatollah Mojtaba Khamenei as not very bright.
Some economists think the Fed, facing inflationary pressures from rising energy prices, may not cut interest rates at all this year.
The suspect was responsible for transporting Oseguera's romantic partner to a luxurious cabin, the defense ministry said .
A severe weather front has dumped heavy snow on the Upper Midwest, caused thunderstorms in the South and threatens Mid-Atlantic states with rain and possible tornadoes.
A fifth of seven members of the Iran women's soccer team who accepted refugee visas to stay in Australia has changed her mind, a sport official says.
In an exclusive interview with CBS News Saturday, Federal Communications Chair Brendan Carr doubled down on his warning that broadcast licenses could be revoked amid President Trump's criticisms of media coverage of the war in Iran.
The song is that of a humpback whale and was recorded by scientists in March 1949 in Bermuda, researchers said.
The top 16 seeds in the 68-team field will host first- and second-round games, with the regional rounds being played at two neutral sites for the fourth straight year.
Some economists think the Fed, facing inflationary pressures from rising energy prices, may not cut interest rates at all this year.
Patchwork state policies and limited federal oversight have led to a fragmented system for tracking organ donor status.
The United States will face the winner of Monday's semifinal between Italy and Venezuela in Tuesday's World Baseball Classic title game.
Some economists think the Fed, facing inflationary pressures from rising energy prices, may not cut interest rates at all this year.
With oil markets paralyzed by the U.S.-Iran war, the Trump administration says it could escort ships through the Strait of Hormuz — a massive undertaking that experts say could already be in the preparatory stages.
U.S. gas prices are surging as the Iran war drives up the global cost of oil. But what exactly accounts for what you pay at the pump?
Planning a trip? Travel experts recommend booking your flight soon as the Iran war drives up airline and ticket costs.
Two Democratic lawmakers are proposing tax reforms that would eliminate federal income taxes for millions of Americans.
Rep. Dan Crenshaw, whose term as representative of Texas' 2nd congressional district is set to end following his loss in the Republican primary earlier this month, appeared on "Face the Nation with Margaret Brennan" on Sunday.
On this "Face the Nation with Margaret Brennan" broadcast, Iranian foreign minister Abbas Araghchi and Rep. Dan Crenshaw join Margaret Brennan.
The following is the transcript of the interview with Sen. Mark Warner, Democrat of Virginia, that aired on "Face the Nation with Margaret Brennan" on March 15, 2026.
The following is the transcript of the interview with National Economic Council Director Kevin Hassett that aired on "Face the Nation with Margaret Brennan" on March 15, 2026.
The following is the transcript of the interview with Rep. Dan Crenshaw, Republican of Texas, that aired on "Face the Nation with Margaret Brennan" on March 15, 2026.
Patchwork state policies and limited federal oversight have led to a fragmented system for tracking organ donor status.
Spencer Laird was diagnosed with colon cancer at 26. At 30, he was told it had returned and spread to his lungs, with one tumor the size of a golf ball.
The Trump administration's Medicare boss reacts to CBS News investigation into California's hospice fraud problems.
Even people with six-figure incomes are making financial sacrifices to pay for medical care, a new study finds.
Crystalline silica, which is released into the air when workers cut and polish engineered stone for kitchen countertops, can scar human lungs beyond repair.
The suspect was responsible for transporting Oseguera's romantic partner to a luxurious cabin, the defense ministry said.
The operation marks the latest joint show of force against drug cartels in the South American country.
Iran war could escalate further as Trump threatens to hit key oil infrastructure if Tehran doesn't drop its chokehold on the Strait of Hormuz.
A fifth of seven members of the Iran women's soccer team who accepted refugee visas to stay in Australia has changed her mind, a sport official says.
The United States will face the winner of Monday's semifinal between Italy and Venezuela in Tuesday's World Baseball Classic title game.
Clayton Davis, the senior awards editor for Variety, joins "CBS Mornings" to discuss the big moments, winners and surprises at the Oscars.
"One Battle After Another" took home six awards at the Oscars, including Best Picture and Best Director, while Michael B. Jordan won Best Actor for his performance in "Sinners." Meanwhile, actor Billy Crystal led the in memoriam segment with an emotional tribute to Rob Reiner and his wife, Michele, who were killed last year. Nischelle Turner reports on Hollywood's biggest night.
The film follows CBS News correspondent Steve Hartman and photographer Lou Bopp through their seven-year journey to document the toll of America's school shooting epidemic.
The North American box office grossed $9 billion last year, far below pre-pandemic numbers. One survey found only half of Americans said they saw a movie in theaters last year. Gwen Baumgardner reports.
As Kumail Nanjiani took the stage to announce the winner for Best Live-Action Short at the 98th annual Academy Awards, the actor exclaimed: "And the Oscar goes to ... it's a tie."
A community in Alabama is pushing back against a solar farm that would power an artificial intelligence data center in the state. CBS News reporter Kati Weis has more.
Jury deliberations are underway in a landmark social media trial about addiction claims. CBS News correspondent Carter Evans has the details.
From labor shortages to environmental impacts, farmers are looking to AI to help revolutionize the agriculture industry. One California startup, Farm-ng, is tapping into the power of AI and robotics to perform a wide range of tasks, including seeding, weeding and harvesting.
For one week, three New Jersey high schoolers agreed not to take their phones to bed, and to try different tools to reduce screen time.
The Trump administration has blacklisted AI giant Anthropic, labeling it a supply chain risk. The company has sued in response. New York Times tech reporter Sheera Frenkel joins CBS News to break down the feud.
The song is that of a humpback whale and was recorded by scientists in March 1949 in Bermuda, researchers said.
A new study in the journal Nature says most sea level rise research may have underestimated coastal water heights by an average of 1 foot.
NASA Administrator Jared Isaacman announced significant changes to the agency's Artemis program, which aims to land on the moon in 2028.
Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.
A large shark was caught on camera for the first time in Antarctica's waters, surprising researchers. "There's a general rule of thumb that you don't get sharks in Antarctica," one said.
Closing arguments are expected to begin on Monday in Kouri Richins' murder trial. She's accused of giving her husband a deadly dose of fentanyl four years ago before she later published a children's book about grief. The case included 13 days of testimony, but the defense did not call any witnesses. If convicted, Richins could face life in prison.
The suspect was responsible for transporting Oseguera's romantic partner to a luxurious cabin, the defense ministry said.
The operation marks the latest joint show of force against drug cartels in the South American country.
Jocelyn Peters, a beloved third grade teacher in St. Louis, Missouri, was shot to death in her sleep. The crime scene held an unusual clue – something one detective says he had never seen before.
Suspect Christian Barrios, 32, shot two people multiple times Friday night, St. Johns County Sheriff Rob Hardwick said.
Bill Nye the Science Guy sits down with CBS News chief Washington correspondent Major Garrett to talk about his life and career.
NASA's huge Space Launch System rocket has been repaired and is ready for rollout back to the launch pad next week.
Nearly 14 years after it was launched in 2012, NASA says a 1,300-pound satellite is expected to come crashing back to Earth on Wednesday. Most of it will burn up as it reenters the atmosphere, but NASA warns some debris could survive reentry.
The Van Allen probe's mission was meant to last two years, but ended up going for nearly seven.
NASA has announced a major overhaul of its Artemis moon program amid ongoing safety concerns. CBS News space consultant Bill Harwood has more details.
A look back at the esteemed personalities who've left us this year, who'd touched us with their innovation, creativity and humanity.
Does the evidence show a cover-up, or was Todd Kendhammer wrongfully convicted for the murder of his wife?
Christy Salters-Martin dominated in the boxing ring but faced her toughest challenger at home.
Family seeks answers in death of newlywed who disappeared in 2005 while on Mediterranean honeymoon cruise.
Meet the tattooed beauty charged in the death of Google executive Forrest Hayes.
Closing arguments are expected to begin on Monday in Kouri Richins' murder trial. She's accused of giving her husband a deadly dose of fentanyl four years ago before she later published a children's book about grief. The case included 13 days of testimony, but the defense did not call any witnesses. If convicted, Richins could face life in prison.
March Madness begins this week with the First Four games on Tuesday and the tournament officially tipping off on Thursday. CBS Sports college basketball insider, analyst and sideline reporter Jon Rothstein breaks down the favorites to win it all, powerhouse teams who aren't the top seeds and possible Cinderellas of the tournament.
Airport TSA lines are growing as workers begin to miss paychecks due to the government shutdown surrounding funding for the Department of Homeland Security. CBS News' Mark Strassmann reports.
Clayton Davis, the senior awards editor for Variety, joins "CBS Mornings" to discuss the big moments, winners and surprises at the Oscars.
"One Battle After Another" took home six awards at the Oscars, including Best Picture and Best Director, while Michael B. Jordan won Best Actor for his performance in "Sinners." Meanwhile, actor Billy Crystal led the in memoriam segment with an emotional tribute to Rob Reiner and his wife, Michele, who were killed last year. Nischelle Turner reports on Hollywood's biggest night.