Cavefish - Wikipedia
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish.
Mexican tetra - Wikipedia
The Mexican tetra (Astyanax mexicanus), also known as the blind cave fish, blind cave characin or the blind cave tetra, is a freshwater fish in the Characidae family (tetras and relatives) of the order Characiformes.
How This Cave-Dwelling Fish Lost Its Eyes to Evolution
2015年9月11日 · Few animals have ignored the warning “use it or lose it” as spectacularly as the Mexican blind cavefish (Astyanax mexicanus), which no longer has eyes. Now scientists may have solved the...
Blind fish - Wikipedia
A blind fish is a fish without functional eyes. [1] Most blind fish species are found in dark habitats such as the deep ocean, deep river channels and underground. [2]
Blind cave fish lost eyes by unexpected evolutionary process
2017年10月12日 · We’ve found out why a Mexican cavefish has no eyes – and the surprising answer is likely to be seized upon by those who think the standard view of evolution needs revising. Over the past few...
Fish - Mammoth Cave National Park (U.S. National Park Service)
2021年11月19日 · These fish, also known as eyeless fish, have adapted to lightless, low-energy environments by ceasing to grow eye structures and unnecessary skin pigments. These fish are troglobites, meaning they spend their entire life cycles in the cave.
Eyeless Fish: Profile, Size, Range, Lifespan, Facts, Diet, Care
Devoid of vision in the perpetual darkness of their habitat, these remarkable fish have evolved extraordinary compensatory mechanisms to navigate their environment. One such adaptation is their highly sensitive lateral line system, a specialized sensory organ crucial for their survival.
Blind Cave Fish: Why Do Mexican Cavefish Have No Eyes?
2023年10月19日 · Let me introduce you to Astyanax mexicanus, commonly known as the Mexican Blind Cavefish or the Blind Cave Tetra. They live in a perpetual state of darkness for the vast majority of their lifespan. Their eye degeneration is because the species did not pay any heed to the “use it or lose it” principle of evolution.
NIH researchers identify how eye loss occurs in blind cavefish
2018年5月29日 · Loss of eye tissue in blind cavefish (Astyanax mexicanus), which occurs within a few days of their development, happens through epigenetic silencing of eye-related genes, according to a study led by the National Institutes of Health. Epigenetic regulation is a process where genes are turned off or on, typically in a reversible or temporary manner.
Cavefish and the basis for eye loss - PMC - PubMed Central (PMC)
In this review, we give an overview of our current knowledge underlying the process of regressive and convergent evolution using eye degeneration in cavefish as an example. This article is part of the themed issue ‘Evo-devo in the genomics era, and the origins of morphological diversity’.
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