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Possibly to save audiences from a similar fate, we were never permitted to see these terrors, leaving us as sightless as the movie’s scrabbling survivors.

The sightless child knows the other children, all able to see, are there but is left to stumble around, using sounds and knowledge of the space they're in as guides.

Chinese red-headed centipedes, which are sightless, use an unusual thermal sensor to detect sunlight, a study has found.

Chinese red-headed centipedes are not the only sightless creatures that can perceive light.

They’re sightless and feed by filtering tiny organisms and organic matter from the water.