Unit 3.2.2 Founder Effect and Leading Edge Expansion

Round-9 hunt: picked; channel-level screens (sellers/exam/re-upload/devotional/vendor) passed; strict per-title check + final strict pass; oEmbed verified.

A 14-minute video from Matthew Terry: “Unit 3.2.2 Founder Effect and Leading Edge Expansion”.

Video by Matthew Terry, played through YouTube's embedded player.