By last winter, medetomidine was showing up in 70% of illicit opioid samples tested in Philly, along with other unregulated substances and synthetic opioids like fentanyl.

The very first humans millions of years ago may have been inventors, according to a discovery in northwest Kenya. Researchers ...

The 2025 Minneapolis mayoral race shows how ranked-choice voting can upend politics, as a three-way alliance looks to unseat the incumbent.