Whale ancestors were terrestrial mammals that walked on four legs. This bone structure that helped them walk eventually ...

If you’ve seen the phrase time immemorial used repeatedly in Indigenous affairs reporting, there are some compelling reasons why.

While living in Flagstaff means being surrounded by pine and aspen, accompanied with views of the peaks and the traditional four seasons, it also includes experiencing the occasional impact of smoke.

Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign.

There are some logical things we know to be true: working out is tiring. And being tired helps you fall asleep. But exercise before bed can sometimes have the opposite effect. I have personal ...

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

There are a number of changes that could affect you this tax season. Reporter With the deadline to file your taxes only a few months away, it may be a good time to start thinking about a number of key ...

Scott LoMurray is the executive chair of Sources of Strength, and one of TIME’s 100 Most Influential Leaders in Health in 2025. Scott LoMurray is the executive chair of Sources of Strength, and one of ...

The U.S. government calculates the country's official time using more than a dozen atomic clocks at a federal facility northwest of Denver. But when a destructive windstorm knocked out power to the ...