iD 2020.01: The World's Unsolved Mysteries
- How the flora and fauna of the forest cope with the cold.
- The unsolved mysteries of world history.
- What if mosquitoes were utilized purposefully?
- The unpredictable life of geysers.
- The real IT killer.
- The secrets of the Colosseum.
- What happens when our bodies refuse to obey our commands?
Cover date: January 2020
On newsstands: November 8, 2019