Every other Friday, the Outside/In team answers one listener question about the natural world. This week, Jeannie from Burlington, Vt., asked us about wastewater treatment plants. She said she's ...

Primary clarifier tanks sit at the Cedar Rapids Water Pollution Control Facility in Cedar Rapids on Nov. 4. The clarifier tanks allow large items in the water to settle at the bottom of the tank while ...

Corpse plants are rare, and seeing one bloom is even rarer. They open once every seven to 10 years, and the blooms last just ...

Humans make stuff up—including the names and classifications of living things. But those categories are still useful. In this episode of Crash Course Botany, we’ll explore how taxonomy and systematics ...