The Fish That Gave Up Seeing #evolution #nature #shorts

Added: 2026-05-25

[00:00:00]These fish are permanently blind.

[00:00:03]The Mexican blind cave fish start developing eyes as embryos, but the tissue degenerates and they are covered by skin, making them entirely blind.

[00:00:14]Next is the Ozark cave fish. Small at 2.5 in, their habitat often relies on nutrients brought from the surface, such as bat guano, leaf litter, and tree roots, which feed the snails and lavi they eat.

[00:00:30]Found in Western Australia is the blind cave eel.

[00:00:34]Reaching up to 40 cm in length, this species is the longest caveish in Australia. It lives in deep, dark freshwater aquifers that are connected to marine tides.

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