The Northeast Fisheries Science Center of the National Marine Fisheries Service provides this wonderful site offering a myriad of answers to frequently asked fish questions. If your questions include "Do fish sleep?" or "How does a scallop move?" or "What is 'tomalley'?", you are sure to find the answers here--as well as many other fascinating fish facts. Answers are thorough, and many are accompanied by color graphics, tables, and photographs to illustrate principles and provide examples.