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Fig. 1 | Evolution: Education and Outreach

Fig. 1

From: Losing Sight of Regressive Evolution

Fig. 1

Surface and blind cave tetra from Mexico. Astyanax is the blind cave fish commonly seen in pet stores and is also the most studied cave organism in the world. Astyanax is a single species with two morphs; one is the eyed surface-dwelling form and the other is an eyeless cave-dwelling form

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