Guest: Dr. John Krystal is a professor of psychiatry, neuroscience, and psychology at the Yale School of Medicine. Transcripts for each episode are available within 1-3 days at sciencefriday.com.

Mar. 3, 2026 Returning rescued slow lorises to the wild may sound like a conservation success, but a new study shows it can turn deadly. Researchers tracked nine released animals and found that only ...