Where does this come from, and can I check it?

Complex eye clusters located on body corners sense light and shadows. The figure is taken from Smithsonian Ocean, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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Yes. It sits on the Animals shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Box jellyfish possess 24 eyes, including six with true lenses

Complex eye clusters located on body corners sense light and shadows.

Unlike simple translucent sea jellies that merely drift on ocean currents, box jellyfish swim purposefully using 24 eyes grouped into four clusters called rhopalia. Six eyes feature true lenses, corneas, and retinas capable of detecting obstacles and light directions.

Where this comes from

Smithsonian Ocean

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Tags: box-jellyfish, ocean, eyes

Box jellyfish possess 24 eyes, including six with true lenses: the short answers

Where does this come from, and can I check it?: Complex eye clusters located on body corners sense light and shadows. The figure is taken from Smithsonian Ocean, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?: Yes. It sits on the Animals shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.