<I>Nephila clavipes</I> (IMAGE) Smithsonian Tropical Research Institute Caption Nephila clavipes, a big tropical spider, has plenty of room in its body for its brain. Credit Pamela Belding, STRI Usage Restrictions Credit: STRI License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.