Complex sentence: Mulder visits the nearby Dr. Ivanov, a wheelchair-using scientist who works on insect-like robots, and renders the man speechless-informing Mulder that the specimen is, technology-wise, vastly superior to anything he's ever seen before.
Split into simpler sentences: Mulder visits the nearby Dr. Ivanov, a wheelchair-using scientist who works on insect-like robots. After showing the scientist the insect specimen, Ivanov is rendered speechless; he informs Mulder that the specimen is, technology-wise, vastly superior to anything he's ever seen before.