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.
Trump says he expects the U.S. war with Iran to end within several weeks despite unrelenting attacks from both sides and Iran's iron grip on the Strait of Hormuz.
The Supreme Court on Wednesday appeared open to invalidating President Trump's executive order that would end birthright citizenship.
NASA's Artemis II astronauts are set to launch today on a nine-day mission around the moon and back. Follow the countdown and watch it live.
Trump said Iran gave him the "present" of letting eight oil tankers through the Strait of Hormuz, but the majority of ships making the passage are Iranian, including
The Noem policy meant the secretary was required to personally sign off on thousands of DHS contracts.
President Trump has told Britain's Telegraph newspaper he could try to terminate U.S. membership in NATO. He's railed against NATO allies for refusing to join the Iran war.
The COVID-19 variant BA.3.2, nicknamed "Cicada," has been detected in at least 23 countries and half the states in the U.S.
U.S. gasoline prices continue to inch higher after crossing the $4 a gallon threshold on Tuesday for the first time since 2022.
American journalist Shelly Kittleson was kidnapped in Baghdad on Tuesday, according to two sources familiar with the matter as well as an Iraqi official.
President Trump says he's considering withdrawing the U.S. from NATO, following years of complaining about the alliance.
The Noem policy meant the secretary was required to personally sign off on thousands of DHS contracts.
The Texas-based company could go public with a valuation of more than $1.75 trillion, making it the largest IPO in history.
With oil prices rising and hiring already slowing, economists warn the Iran war could further weigh on U.S. job growth.
Hershey said Wednesday it will use classic recipes for all Reese's products starting next year, after getting criticism for changing the popular treats.
The Texas-based company could go public with a valuation of more than $1.75 trillion, making it the largest IPO in history.
With oil prices rising and hiring already slowing, economists warn the Iran war could further weigh on U.S. job growth.
Hershey said Wednesday it will use classic recipes for all Reese's products starting next year, after getting criticism for changing the popular treats.
U.S. gasoline prices continue to inch higher after crossing the $4 a gallon threshold on Tuesday for the first time since 2022.
JPMorgan Chase CEO Jamie Dimon shares his thinking on capitalism, AI, prediction markets and more in an interview with "CBS Evening News" anchor Tony Dokoupil.
President Trump says he's considering withdrawing the U.S. from NATO, following years of complaining about the alliance.
The Noem policy meant the secretary was required to personally sign off on thousands of DHS contracts.
The filing supports a plaintiff who alleges Monsanto failed to warn consumers about cancer risks tied to Roundup, one of the most widely used herbicides in the world.
American commandos joined Ecuadorian troops in a joint mission aimed at dismantling a suspected criminal hub along the country's coast.
Congressional leaders announced that Britain's King Charles III will address a joint meeting of Congress as part of his visit to Washington later this month.
The COVID-19 variant BA.3.2, nicknamed "Cicada," has been detected in at least 23 countries and half the states in the U.S.
North Carolina and other states have insurance plans for kids in foster care, but many doctors did not accept patients on the plans, leaving kids' guardians scrambling to find health care providers.
The One Big Beautiful Bill Act will add red tape and restrictions for those seeking Medicaid and SNAP benefits. And the costs to update computer systems that determine eligibility for those programs will be steep.
David Lyon is one of the rising number of young adults to be diagnosed with colorectal cancer.
Here's what to know about peptides, what they can and can't do, and what's driving viral claims about possible health benefits online.
A video shows the moment when the M/V Bandero, operated by the Captain Paul Watson Foundation, steams toward the stern of the fishing vessel.
American commandos joined Ecuadorian troops in a joint mission aimed at dismantling a suspected criminal hub along the country's coast.
Congressional leaders announced that Britain's King Charles III will address a joint meeting of Congress as part of his visit to Washington later this month.
Trump said Iran gave him the "present" of letting eight oil tankers through the Strait of Hormuz, but the majority of ships making the passage are Iranian, including
After strangers raised thousands of dollars for a search, the border collie was flown to safety by a pilot who was determined to reunite pet and owner.
Actor and comedian Kenan Thompson joins "CBS Mornings" to discuss his new children's book, "Unfunny Bunny."
Kid Rock posted videos of the helicopters hovering by his Nashville home on social media over the weekend. The Army later confirmed the helicopters were on a training mission.
Taylor Swift is being sued by Las Vegas performer Maren Wade who has accused the superstar of trademark infringement over her latest album, "The Life of a Showgirl." Wade is the creator of the "Confessions of a Showgirl" podcast, which started as a column in 2014.
Sharon Stone reflected on her legendary career as she discussed joining the cast of "Euphoria," working with the show's creator, Sam Levinson, and how she has advocated for women in the entertainment industry.
A Las Vegas performer has sued Taylor Swift over the title of her hit album "The Life of a Showgirl," alleging it violates the performer's trademark.
"CBS Mornings" sits down with Tristan Harris, co-founder and president of the Center for Humane Technology, who is featured in the 2026 documentary, "The AI Doc: Or How I Became an Apocaloptimist."
CBS News contributor Patrick McGee joins "The Daily Report" to discuss the codependent relationship between Apple and China, a country that manufactures hundreds of millions of iPhones every year.
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.
The JPMorgan Chase CEO said the bank may one day introduce prediction market features, but said "there's a bunch of stuff we won't do" in that space.
Many have dreamed of a future with flying cars, eliminating traffic on the morning commute. One company is trying to make that dream a reality. Itay Hod reports.
NASA's Artemis II astronauts are set to launch today on a nine-day mission around the moon and back. Follow the countdown and watch it live.
According to a recent report, nearly one in four species catalogued by the CMS are threatened with extinction on a worldwide scale.
NASA is poised to launch four astronauts on a historic nine-day trip around the moon and back. Here's everything to know about the Artemis II mission.
Arctic sea ice levels are crucial to Earth's climate because, without the ice reflecting sunlight, more heat energy goes into the oceans.
Marine biologists found detectable levels of caffeine, cocaine and the over-the-counter painkillers in the blood of 28 sharks.
James Farthing, who won the $167.3 million Powerball jackpot last April, was arrested for a third time since collecting his grand prize. CBS News' Shanelle Kaul has more.
The son of a Maui doctor testified that his father confessed to him over FaceTime to trying to kill his stepmother, Arielle Konig, on a hike last year. Prosecutors allege Gerhardt Konig tried to push his wife off a cliff, attempted to inject her with a syringe and hit her in the head with a rock.
Lawyers for Luigi Mangione, the man charged with the murder of UnitedHealthcare CEO Brian Thompson, are seeking to postpone his federal murder trial. CBS News' Lilia Luciano reports.
Lawyers for the man accused of killing Charlie Kirk are asking to delay a preliminary hearing set for May, arguing the defense team needs time to review ATF analysis they contend "could not" connect a bullet fragment recovered during Kirk's autopsy with the rifle found near the scene of the crime. CBS News legal contributor Jessica Levinson joins to unpack the development.
Tiger Woods had bloodshot eyes, was "sweating profusely" and had "extremely dilated" pupils after a rollover car crash last week, an arrest report shows. CBS News' Shanelle Kaul has the details.
NASA's Artemis II astronauts are set to launch today on a nine-day mission around the moon and back. Follow the countdown and watch it live.
As launch time approaches for NASA's first moonshot in more than half a century, anticipation is building for the Artemis II mission. Here's how to watch today's liftoff.
Forecasters continue to predict an 80% chance of favorable weather on Wednesday for the launch of four astronauts on a flight to the moon.
Countdown clocks began ticking Monday, setting the stage for launch of the Artemis II moon mission early Wednesday evening.
NASA's Artemis II astronauts — three space station veterans and a Canadian rookie — stand out even in an astronaut corps full of super achievers.
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.
The Artemis II crew have boarded the Orion capsule with just a few hours remaining before they launch for their mission around the moon. Former NASA administrator and astronaut Charles Bolden joins CBS News to discuss.
The four-person crew of the Artemis II mission are scheduled to launch Wednesday on a nine-and-a-half day journey around the moon. Former NASA administrator and astronaut Charles Bolden joins CBS News to discuss some of the human aspects of the trip.
Former NASA administrator and astronaut Charles Bolden joins CBS News to share his thoughts on the Artemis II mission as the four-person crew continues its final preparations for launch.
The four-person crew of the Artemis II mission are making their final preparations ahead of Wednesday's scheduled launch for their mission around the moon. CBS News senior national correspondent Mark Strassmann has more.
The four Artemis II astronauts are making their final preparations before Wednesday's scheduled launch for their trip around the moon. CBS News space consultant William Harwood and meteorologist Jessica Burch have the latest.