Paleontologists have analyzed the fossilized features of the brain and central nervous system of Mollisonia symmetrica, an extinct animal that lived in...
Euchelicerata is a large group of arthropods comprising horseshoe crabs, scorpions, spiders, mites and ticks, as well as the extinct sea scorpions and...
Habelia optata, a close relative of the ancestor of modern-day spiders, scorpions and horseshoe crabs, evolved an extremely complex head to hunt and eat...
