"Daddy Longlegs Embryos Possess Extra Underdeveloped Eyes"

Researchers have discovered that a living species of daddy longlegs has two additional sets of underdeveloped eyes as embryos, indicating that the species diversified earlier in the evolutionary tree than previously believed. The finding suggests that the arachnid's ancestor lost two pairs of eyes, and the study provides important insights into the genetic and developmental conditions that give rise to different kinds of eyes, shedding light on the process of evolution.