Instructor's Manual. Prepared by Peter Castro, this helpful ancillary provides chapter outlines and summaries, a listing of audiovisual materials and software that complement each chapter, and answers to the Critical Thinking Questions within the text. Instructors will also find suggestions on how to present concepts to students and how to organize materials for class presentation. The Instructor's Manual is available in the Online Learning Center, within the Instructor Resources, at http://www.mhhe.com/marinebiology (click on this book's cover).

Test Item File. This user-friendly computerized testing software includes 470 multiple-choice questions and answers, sorted by chapter. The Test Item File is available as a CD-ROM, and is available free of charge to instructors using the textbook.

Digital Content Manager. Available on CD-ROM, instructors will have access to the Digital Content Manager (DCM). This multimedia collection of visual resources allows instructors to utilize artwork from the text in multiple formats to create customized classroom presentations, visually-based tests and quizzes, dynamic course website content, or attractive printed support materials. The digital assets on this cross-platform CD-ROM are grouped by chapter within easy-to-use folders. On the CD-ROM version of the Digital Content Manager, instructors will have access to video segments from Scripps Institution of Oceanography, grouped by chapter to go with the fifth edition of this text.

Transparencies. A set of 75 full-color overhead transparencies of key illustrations from the text is available to instructors.

Laboratory Manual. A collection of eight laboratories and field investigations in marine biology have been specially written to be used in conjunction with the Fifth Edition of Marine Biology. It is ideal for a one-quarter or one-semester course. Each of the exercises includes review questions that integrate information learned in the laboratory or field with material covered by the text. The exercises are available as part of the Marine Biology Online Learning Center for this text at http://www.mhhe.com/marinebiology.

Marine Biology Online Learning Center. This text-specific website allows students and instructors from all over the world to communicate. Instructors can create a more interactive course with the integration of this site, and students will find many tools to help them improve their grades and learn that marine biology can be fun. Check out the Online Learning Center for this text at http://www.mhhe.com/marinebiology (just click on this book's cover).