Ishvalans possess their distinct red eyes because it is a dominant genetic trait within their ethnic group.
Understanding the Ishvalan Eye Trait
The unique red eye color observed in the Ishvalan people is a defining characteristic rooted in their genetic makeup. This specific trait is not merely a common feature; it behaves as a dominant gene, meaning it consistently manifests in individuals of Ishvalan descent.
- Genetic Dominance: The presence of red eyes among Ishvalans is due to a gene that is dominant. This implies that if an individual inherits even one copy of this gene, they are highly likely to exhibit the red eye color.
- Inheritance Across Generations: This powerful genetic trait ensures that the red eye color persists reliably across generations. It remains a prominent feature regardless of whether Ishvalans intermarry with individuals from other ethnicities.
- Persistence in Mixed Heritage: A clear illustration of this trait's dominance can be seen in characters like Miles. Despite his mixed heritage, his Ishvalan red eye trait is prominently displayed, underscoring its strong genetic expression.
This genetic characteristic, alongside their typically brown skin and white or silver hair, serves as a primary identifier for the Ishvalan population.
