Daddy Longlegs Once Had 4 Eyes
Fossil reveals an extra pair
By Newsy, a Newser Video Partner
Posted Apr 11, 2014 5:39 PM CDT

(Newser) – As if they couldn't get any creepier, the arachnids we all know today as daddy longlegs once had not just one pair of eyes but two. Researchers say a 305-million-year-old fossil discovered in France says a lot about the evolutionary history of the critters, which presently have one set of clustered eyes atop their heads. High-resolution X-ray images show the ancestors had another set of eyes closer to the sides of their heads, called lateral eyes.