On this week's episode of The Debrief Weekly Report, Kenna and Steph dive head first into a lava tube in Saudi Arabia that once served as a human dwelling.
New research just identified the source of several neurodegenerative diseases including multiple sclerosis, and how an ancient migration brought it to Europe.
Researchers investigating how and when the first people arrived in North America are proposing that ancient travelers may have followed “ice highways” across the Pacific.