Arizona’s iconic saguaros are struggling with extreme urban heat, which is causing illness, collapse, and fewer young cacti.

Among a flurry of executive actions, Mr. Trump directed the nation’s nuclear safety regulator to speed up approvals for new ...

University of Alberta research is showing how trees and fungi team up to survive and stay healthy against insect attacks—an ...

When pollinators visit flowers, they produce various sounds, from wing flapping during hovering, to landing and takeoff. Scientists studied these vibroacoustic signals to develop noninvasive and ...

"This was the moment when all the time we had spent on screening finally paid off." Scientists elated after making ...