Urban trees often stand at the center of plans to fight rising city temperatures. Their cooling power seems simple and ...

By measuring the patterns of evolutionary rate variation among organisms, they can also gain valuable insight into the biological processes that determine how quickly the molecular clock ticks.

This seasonal spring-like pattern will continue through the rest of the week with more afternoon storms on Tuesday brining the Denver metro area high rain chances with highs again in the middle 60's.

November 25, 2024 • Books We Love returns with 350+ new titles handpicked by NPR staff and trusted critics. Find 12 years of recommendations all in one place — that's nearly 4,000 great reads.