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Researchers find genetic stability in a long-term Panamanian hybrid zone of manakins - EurekAlert

We often think of species as separate and distinct, but sometimes they can interbreed and create hybrids. When this happens consistently in a specific area, it forms what’s known as a hybrid zone. These zones can be highly dynamic or remarkably stable, and studying them can reveal key insights into how species boundaries evolve—or sometimes blur. In a new study published in Evolution, researchers at the University of Illinois Urbana-Champaign describe a hybrid zone between two manakin species in Panama that has overall remained relatively stable over the past 30 years.

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