Environmental hypoxia controls the evolution of cavefish heart asymmetry
Mandy Ng, Helena Bilandžija, William R. Jeffery
This study shows that hypoxia induces left-looping heart development in surface fish, mimicking cavefish traits, and reveals a mechanistic link between hypoxia and evolutionary changes in heart asymmetry.
bioRxiv · Jan 30, 2026 · PreprintEvolutionary Biology