The American West's sagebrush sea is rapidly vanishing
Once considered a rangeland weed, this plant is the cornerstone of America’s desert ecosystems
How the age of Mars rovers began
Perseverance is the fifth rover to land on the Red Planet. NASA scientists remember Mars Pathfinder’s Sojourner—the 90s experimental endeavor that started it all
Mating plugs and other weird butterfly sex habits
Male butterflies want monogamy. Females, not so much.
Cervical mucus is an unsung indicator of women's health
This amazing hydrogel is also your vagina's gatekeeper, protecting you from pathogens
Did a mass extinction help dinosaurs dominate the Earth?
These fossil hunters want to solve the mystery
A shapeshifting fungus lives in the dust. It's infecting across the American West
Valley Fever is mild for some, but for others it's deadly. And it's spreading as the climate warms