The early worm gets the arachnid, fossil research by an Oregon State University scientist has shown. In a parasitic first, a Baltic amber specimen has revealed that millions of years ago, tiny worms known as nematodes were living inside of and feeding on the outer protective layer of pseudoscorpions. The early worm gets the arachnid, fossil research by an Oregon State University scientist has shown. In a parasitic first, a Baltic amber specimen has revealed that millions of years ago, tiny worms known as nematodes were living inside of and feeding on the outer protective layer of pseudoscorpions. Ecology Paleontology & Fossils Phys.org – latest science and technology news stories