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Which animals do not have eyes?

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Blind Cave Tetra
Belize Land Crab
Grotto Salamanders
Olm Salamander

Animals without eyes usually live in the deepest parts of the oceans. They don't need eyes, they don't have them. They use hearing and sense of touch to locate prey, and food.

Worms don't and some fish from the depth of the ocean don't.. then there are bats and animals with abnormal eyes, a bat's eyes don't see the same as normal eyes they act more like infrared, they rely on senses of echos from there screeches to paint themselves a picture of the environment.

sponges don't,
most mollusks don't