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The Mexican tetra (Astyanax mexicanus) is a freshwater fish that can evolve into a blind cave form in complete darkness. Learn about its distribution, evolution, ecology, and aquarium care.
11 paź 2022 · Cavefish have evolved asymmetric neuromasts on their heads to detect walls and swim freely in the dark. The study reveals how different species of eyeless or partially sighted cavefish use this strategy to survive in the underground environment.
11 wrz 2015 · Learn how the Mexican blind cavefish (Astyanax mexicanus) lost its eyes to save energy in the dark caves. Discover the scientific evidence and theories behind this fascinating adaptation, and how it differs from other cave-dwelling animals.
Amblyopsidae are small freshwater fish that live in caves, springs and swamps in the eastern and southern regions of the United States. They have reduced eyes, pigmentation and scales, and use chemoreceptors and vibrations to find food and mates.
12 paź 2017 · How did a Mexican cavefish lose its eyes? A controversial study suggests an epigenetic mechanism, but experts disagree on its implications for evolutionary theory.
11 lip 2023 · Astyanax mexicanus exists in two forms: a surface form that is abundantly distributed throughout freshwater bodies in Middle America and a blind subterranean form endemic to caves in...
7 sty 2008 · The blind fish, called Astyanax mexicanus, live in isolated limestone caves in northeast Mexico. Over hundreds of millennia of living in darkness, the fish, which have a sighted ancestor,...
