Two of the 110 million-year-old specimens also had glowing eyes. ... The feature is even seen in some modern spiders, like wolf spiders that hunt at night.

A strange spider with glowing eyes that lived more than 100 million years ago was recently discovered by paleontologists working in South Korea.

Two 110 million-year-old spiders with eyes that still glow in the dark have been discovered trapped in shale at a fossil site in South Korea. The two specimens found belong to an extinct spider ...

This spider's eyes still glow, even though it died 110 million years ago. Gnarly preservation. ... Today's wolf spiders employ the same eye structures to hunt, Selden added.

Wolf spiders are hunters known for their excellent vision thanks to their eight eyes. vmenshov – stock.adobe.com “One of the spider eggs hadn’t been flushed and must have hatched,” Blake said.

While the fossil spiders' eyes would have glittered as wolf spiders' eyes do today, it's far from a given that they hunted their prey in a similar way.

A 100-year-old spider with reflective eyes. Image: PAUL A. SELLEN/The University of Kansas Today's wolf spiders employ the same eye structures to hunt, Selden added.