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The spider's eyes glow even though they have died 110 million years ago



  Glowing eyes.
Glowing eyes.

Image: Paul A. Selen / University of Kansas

Korea has found long dead spiders stored in the rock. And for the joy of the scientists, the eyes of the arachnids are still reflecting – about 110 million years after the deaths of the beings. It is rare for insects and arachnids – which are much more fragile than boned sea creatures – to become fossilized in the rocks. But for yet unknown reasons, several of these spiders are fossilized, and the unique shape of their eye structures continues to reflect light – even in their petrified form. The reflective eye structure is called tapetum and is often used by creatures that hunt in the dark.

"So predators of night hunters tend to use this different eye," said Paul Selden, director of the Paleontology Institute at the Kansas University Institute of Biodiversity and the Natural Science Museum. "This is the first time the tapetum has found a fossil. This tapetum is a canoe-like little Canadian canoe.

<img class = "" data-credit-name = "PAUL A. SELLEN / The University of Kansas" data-credit-provider = "custom type" data-caption = eyes. " title = "A 100-year-old spider with reflective eyes." src = "https://mondrian.mashable.com/uploads%252Fcard%252Fimage%252F935811%252F2d19f225-2d64-40f2-bce2-76e7efa769dd.png%252Ffit-in__1200x9600.png?signature=-Nn2CUHNCuRwuldXkrNChWLDqbQ=&source=https%3A% 2F% 2Fblueprint-api-production.s3.amazonaws.com "alt =" 100-year-old spider with reflective eyes 100 years old spider with reflective eyes

Photo: PAUL A. SELLEN / University of Kansas

spiders use the same eye structures for hunting, added Selden: How do the spiders become fossilized? Their fossilized bodies were found in a rock layer filled with fish and other marine creatures – but the spiders do not live in water

"It must be very special a situation in which they are or washed in a water body, "- They usually swim, but here they sank, and this kept them from decomposing bacteria – perhaps a state of low oxygen."

<img class = "" data-credit- name = "PAUL A. SELLEN / THE UNIVERSITY OF KANSAS" data-cap-provider = "custom type" data-caption = "Another view of the fossilized spider." src = https://mondrian.mashable.com/uploads%252Fcard%252Fimage%252F935822%252F91b813fd-17d8-4bd5-b455-407f67378d3d.png%252Ffit-in__1200x9600.png?signature=lHIeKZCHpxQ_6txyK5g_3Ox-R7E=&source=https%3A%2F% 2Fblueprint-api-production.s3.amazonaws.com "alt =" Another look of the faded spider.

Seldon and his Korean colleagues who actually discovered the ancient spiders will now name the curious fossils but were discovered only because the Korean earth is often excavated so scientists and fossils To understand what ancient novelties are hidden in the earth's crust [19659007] "So, they dig the hills to make a flat area, and have temporary trenches as they cut off and build a factory or whatever – they have found those fossils," said Selden.

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