Red hair in humans is a result of a pigment production switch that malfunctions, according to an evolutionary biologist. This trait, which affects approximately 2% of the global population, may not have been a favored evolutionary development. The biologist further explains the genetic and evolutionary factors behind this distinctive hair color. AI
RANK_REASON The item is an explanation of a biological phenomenon by an expert, not a new release or significant industry event.
AI-generated summary · Google Gemini · from 1 sources. How we write summaries →