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Daddy Longlegs Used To Be Even More Terrifying

New fossil shows that the primitive arachnids had an extra set of eyes. Cue heebie-jeebies.

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But a new 305-million-year-old fossil found in France shows that these ancient arachnids had four eyes, according to new research published in Current Biology.

Lightwriter1949/Lightwriter1949

(Merciless teasing from other arachnids was not reported.)

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Modern (and adorable) harvestmen embryos only have a single pair of median eyes.

AMNH/P. Sharma

The white arrows show lateral eye-field areas, which never actually develop. The black arrows show the domains that eventually form the median eyes.