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The fight against fires begins before the first spark—when homeowners in the wildland-urban interface choose whether to remove trees and bushes near their homes.

Sex is apparently like income: People are generally happy when they keep pace with the Joneses. They’re even happier if they get a bit more than their peers.

“Nature teaches beasts to know their friends,” wrote Shakespeare. In humans, nature may be less than half of the story, a team led by University of Colorado Boulder researchers has found.

While descending Cathedral Spire in Yosemite Valley, Richard Laver lost his route. But after a night stranded on a ledge in darkness, he found an answer that had eluded mathematicians for two decades.

Not just anyone can vividly trace a thread weaving through a zebra’s stripes, a partly crumbling brick wall, a Jackson Pollock painting, a Mozart piano sonata, Dr. Seuss’ “Fox in Socks,” Gwendolyn Brooks’ “We Real Cool,” and even a rap duet by Mos Def and Slick Rick.

Ten years ago, Leslie Irvine was on her high horse when it came to homeless people keeping companion animals. But Irvine began to think differently while working at an animal shelter.

It’s hard not to notice the widespread patches of dead trees along the I-70 corridor. For many, there is a next logical thought: All those dead trees are going to provide fuel for a wildfire. But that conventional wisdom might be wrong.

During a general election year, the political divide in America is frequently on display in living color in the form of those ubiquitous “Red vs. Blue state” maps. No surprise, then, that many Americans believe that political polarization is on the rise.

In a United States still haunted by the legacies of race and slavery, even asking questions pertaining to race is disquieting to some. Even so, University of Colorado Boulder researchers have been exploring racial bias in police shootings for more than a decade.

In the heat of the battle for the presidency, one candidate questioned the value of a higher education, suggesting that urging young people to go to college was the sign of a “snob.” But, it seems, more education translates directly into longer life.