Scientists say they've solved debate about origins of mysterious dinosaur
The discovery "rewrites decades of research on Earth's most famous predator," the study's co-author said.
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The discovery "rewrites decades of research on Earth's most famous predator," the study's co-author said.
Apex predators, like the Tyrannosaurus rex, eventually arose from smaller-bodied tyrannosauroid dinosaurs called Khankhuuluu mongoliensis, the study's researchers said.
The researchers determined it predated T. rex by up to 7 million years, showing that tyrannosaurs were in North America long before paleontologists previously thought.
The 200-pound skull fossil, nicknamed Maximus, is being sold by an owner who wishes to remain anonymous, the auction house said.
Rare prehistoric dinosaur footprints discovered in the UK have shed new light on the middle Jurassic period, according to a new report.
The rare Triceratops fossil found at a construction site in Thornton has a name: Tiny. Students at Brantner Elementary School named the 66-million-year old dinosaur.
It was nearing the end of summer when a construction site inspector noticed something out of the corner of his eye no bigger than a quarter that turned out to be something much bigger.
Even more dinosaur bones have surfaced at the dig for Triceratops in Thornton. This is the latest in a series of fossil discoveries at the site in the past month.
More Triceratops fossils were found Monday at the site of the big triceratops discovery last month in Thornton.
The digging continues at the site of the big triceratops discovery in Thornton, and this week evidence of another dinosaur was found.
The Denver Broncos promised there would be a few tricks and treats at Sunday's home game at the Chargers, and one of the best of those came from a cheerleader.
Dinosaur Ridge in Morrison have uncovered more mysteries about dinosaurs, particularly how they mate.
A small wildfire sparked southwest of the Denver metro area on Sunday evening, prompting Douglas County officials to issue an evacuation order.
Four U.S. service members who were listed in a Pentagon casualties database as having died during the Iran war are now listed as "Overseas Operations Casualties."
The Colorado Department of Transportation is advising drivers to expect lengthy delays this week as crews clean up the remains of a mudslide in Red Mountain Pass.
Another wildfire sparked on Colorado's Western Slope on Sunday, prompting officials in Gunnison County to temporarily issue a pre-evacuation notice for nearby residents.
Arvada police used drones to find a dog that seriously injured someone Sunday morning before it ran away.
A small wildfire sparked southwest of the Denver metro area on Sunday evening, prompting Douglas County officials to issue an evacuation order.
The Colorado Department of Transportation is advising drivers to expect lengthy delays this week as crews clean up the remains of a mudslide in Red Mountain Pass.
Another wildfire sparked on Colorado's Western Slope on Sunday, prompting officials in Gunnison County to temporarily issue a pre-evacuation notice for nearby residents.
Arvada police used drones to find a dog that seriously injured someone Sunday morning before it ran away.
Denver Broncos Linebacker Nik Bonitto is teaming up with the Safeway Foundation's Nourishing Neighbors program, the Bonitto Family Foundation and Food Bank of the Rockies to help fight childhood hunger.
Joe Ruch is tracking the forecast in Denver.
Joe Ruch is tracking a return of widespread rain.
Those who have driven along the I-70 corridor recently have likely noticed that water levels in the Dillon Reservoir are low. Despite the challenges, the Dillon Marina is doing its best to provide summer activities.
Denver Broncos Linebacker Nik Bonitto is teaming up with the Safeway Foundation's Nourishing Neighbors program, the Bonitto Family Foundation and Food Bank of the Rockies to help fight childhood hunger.
The record breaking heat didn't stop plenty of people from getting outside and enjoying some sunshine. But many of the people who went to the artisan market in Wash Park on Sunday also took advantage of the nearby cooling center to beat the heat.
Denver Broncos Linebacker Nik Bonitto is teaming up with the Safeway Foundation's Nourishing Neighbors program, the Bonitto Family Foundation and Food Bank of the Rockies to help fight childhood hunger.
There were 89 people arrested in the New York area over the course of the World Cup, the NYPD said.
Colorado general manager Josh Byrnes helped orchestrate a trade with his former team Monday as the Rockies sent right-hander Seth Halvorsen to the Los Angeles Dodgers for two minor league players.
When Brady Russell helped douse his coach Mike McDonald with Gatorade after winning the Super Bowl, he wasn't only celebrating a championship but a long, hard journey to football's mountain top.
As Spain's World Cup champs took to the stage with their trophy, President Trump joined them in their moment of glory.
Four U.S. service members who were listed in a Pentagon casualties database as having died during the Iran war are now listed as "Overseas Operations Casualties."
Since May, more than 11,000 cases of illness caused by the parasite cyclospora have been reported in 41 states. This comes after the Trump administration drastically cut FDA and CDC staff, prompting one expert to call this summer's outbreaks "a national wake-up call."
The plans include arresting migrants in Ohio and quickly putting them on deportation flights to crisis-stricken Haiti, the internal documents indicate.
Americans say they aren't convinced the cyclospora outbreak is under control as confirmed cases near 2,000.
Ukrainian President Volodymyr Zelenskyy's accusations of Russia helping Iran target U.S. troops are not the first.
Four U.S. service members who were listed in a Pentagon casualties database as having died during the Iran war are now listed as "Overseas Operations Casualties."
The plans include arresting migrants in Ohio and quickly putting them on deportation flights to crisis-stricken Haiti, the internal documents indicate.
Ukrainian President Volodymyr Zelenskyy's accusations of Russia helping Iran target U.S. troops are not the first.
The Colorado Secretary of State's Office says the Republican gubernatorial nominee Victor Marx's campaign received nearly 200 illegal campaign contributions during the primary election.
President Trump announced new tariffs of up to 12.5% to replace expiring Section 122 levies. Here are the rates for each country.
Since May, more than 11,000 cases of illness caused by the parasite cyclospora have been reported in 41 states. This comes after the Trump administration drastically cut FDA and CDC staff, prompting one expert to call this summer's outbreaks "a national wake-up call."
Americans say they aren't convinced the cyclospora outbreak is under control as confirmed cases near 2,000.
OpenAI announced a dedicated space in ChatGPT for sharing medical records, Health in ChatGPT. Health and AI experts lay out the pros and cons.
The cyclosporiasis outbreak, the nation's largest, is currently affecting nine states.
Utah's weekly measles case count has fallen. The national tally hasn't, and a newborn who's too young to be vaccinated is caught in between.
Paramount Skydance on Friday said it would delay the deal until as late as June 2027.
A short circuit in the engine compartment can potentially cause a fire. Here's the fix.
President Trump announced new tariffs of up to 12.5% to replace expiring Section 122 levies. Here are the rates for each country.
The central bank is widely expected to stand pat on Wednesday, but persistent inflation concerns are reshaping expectations for the rest of 2026.
Two years after it closed, Evergreen's storied El Rancho restaurant appears ever more likely to face a wrecking ball.
Nearly three out of every four written comments submitted to the Colorado Department of Transportation during the early public review of its proposed Bus Rapid Transit project on Colorado Boulevard oppose the idea.
Insurance can be a hassle for anyone. For one Coloradan, that hassle has been magnified all because of her name.
A man who stopped to help victims of a devastating motorcycle crash instead found himself handcuffed, jailed and accused of driving under the influence -- despite repeatedly asking officers to administer a breath test that he believed would prove his innocence.
For Billy Hailey, his release was a day he had been waiting for and working toward for 20 years. Now, he is unexpectedly back in custody after the state says it miscalculated the date.
A second family in Colorado says a little-known insurance rule has left them fighting two companies to get medical bills paid.