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Does the appearance of the cavefish and the minnow suggest a common ancestry? Why?
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Does the appearance of the cavefish and the minnow suggest a common ancestry? Why?

User Roelvogel
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they are actually a species of tetra called Astyanax . It exists in two forms, one with eyes and one without. They are considered the same species, and can actually interbreed.
User A New Chicken
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