BLUF

Northrop Grumman has opted out of the US Air Force's NGAD competition, leaving it to Lockheed Martin and Boeing.

Summary

KEY POINTS.
  1. During the Neolithic period, hunting and gathering gave way to settled communities that relied primarily on farming and domesticated animals.
  2. Males seem to have stayed in the same area.
  3. The early farmers were likely monogamous, had large families, and, enjoyed stable health and nutrition.

References