Ancient killer spiders have been found fossilized in South Korea with eyes that still shine. have been discovered by Korean students and fanatic hunters Kye-Soo Nam in the rock of the chalk era called "Chinju Formation" in South Korea.
As these spiders were preserved in strange silver spots on the dark rock, what was immediately apparent was their bigger eyes, "said team member Professor Paul Selden. this must have been the tapetum – it's a reflective structure in the inverted eye where the light enters and returns back to the cells of the retina. "
Several types of spiders rely on tapetum
The spiders' fossils are extremely rare and scientists have discovered two new species in the Korean shist.
This is because soft bodies like insects are decomposing very quickly, and so
Instead, they tend to appear in ancient amber ̵
This includes a tapetum that told the scientists. that these spiders have to hunt at night.
"In spiders, those you see with really big eyes are jumping spiders, but their eyes are regular eyes – while wolves spiders at night see their eyes reflected in the light as cats," Professor Selden said.
So predators of night hunters usually use this different kind of eye.
He added that the canoe-like shape of the eye structures would help the bosses place the spiders on the evolutionary tree.
The study was published in Journal of Systematic Paleontology
An ancient spider trapped in amber last year had a tail that used to move around the earth's forests. decision-making skills change but under influence.