Acknowledgments

We are thrilled to introduce the second edition of Scientific American Biology for a Changing World. We have replaced six stories and added two new Milestones to keep this book at the forefront of current issues in biology. New Driving Questions target students’ reading, and new mini cases and data questions test their knowledge. A fresh, updated design showcases our unparalleled Infographics, and compelling narratives continue to reveal how biology is relevant to daily life.

As with the first edition, we could not have completed this project without the help of a great team at W. H. Freeman. The authors would like to thank Elizabeth Widdicombe, Susan Winslow, and the folks at W. H. Freeman and Company and Scientific American for continuing to support this vision for biology education. They recognized our diverse strengths and brought us together to make this vision a reality. We continue to learn so much from one another on this challenging and rewarding professional journey, and none of us has likely worked so hard and so passionately on a project as we all have on this one.

We would like to thank all those who were interviewed and who generously contributed information for the chapters in this edition. Their stories are central to the impact that this book will have on the students we teach. They are authentic examples of biology in a changing world, and they bring this book to life.

A special thank you is required for our Acquisitions Editor, Beth Cole, for her unwavering encouragement and ability to bring stable direction and support to the project. Development Editor Andrea Gawrylewski has spent many hours in the pages of this book, editing the details, managing our chaos, and smoothing our rough edges. Sara Blake and Jane Taylor were invaluable in the scheduling, reviewing, and managing of this edition. We thank them for their dedication, patience, experience, and expertise. Thanks go to Betsye Mullaney and Amanda Dunning for their tireless work on our media and assessment program.

Many thanks to Liz Geller, Nancy Brooks, Diana Blume, Matthew McAdams, Christine Buese, Paul Rohloff, and all the people behind the scenes at W. H. Freeman for translating our ideas into a beautiful, cohesive product. We would like to thank Rachel Rogge and Jan Troutt at Precision Graphics for their outstanding work on the Infographics. We appreciate their patience with the many edits and quick timelines throughout the project. They do amazing work.

We’d like to thank John Britch and Shannon Howard for their enthusiasm and hard work in promoting this book in the biology education community. We thank the enthusiastic group of salespeople who connect with biology educators across the country and do a wonderful job representing this book.

We would like to thank our families and friends who have been close to us during this process. They have been our consultants, served as sounding boards about challenges, celebrated our successes, shared our passions, and supported the extended time and energy we often diverted away from them to this project. We are grateful for their patience and unending support.

And finally, a sincere thank you to our many teachers, mentors, and students over the years who have shaped our views of biology and the world, and how best to teach about one in the context of the other. You are our inspiration.

Media and Assessment Authors

John Harley, Eastern Kentucky University, Learning Curve Activities

Beth Collins, Iowa Central Community College, Learning Curve Activities, Clicker Questions

Carolyn Wetzel, Holyoke Community College, Test Bank

Ryan Shanks, North Georgia College & State University, Test Bank

Cindy Malone, California State University, Northridge, Lecture PowerPoint slides

Jennifer Cymbola, Grand Valley State University, Lecture PowerPoint slides

Ann Aguano, Marymount Manhattan College, Pre-Quiz Study Questions

Jodi DenUyl, Grand Valley State University, Pre-Quiz Study Questions

Brett Macmillan, McDaniel College, Student Study Guide

Jenny Knight, University of Colorado-Boulder, Teaching Guide

Anne-Marie Hoskinson, University of Colorado-Boulder, Teaching Guide

Ben Brammel, Eastern Kentucky University, Teaching Guide

Zuzana Swigonova, University of Pittsburgh, Teaching Guide

Yvette Gardner, Clayton State University, Teaching Guide

Jessamina Blum, Yale University

Annika Moe, University of Minnesota

Elizabeth Hobson, New Mexico State University

Julie Glenn, Gainesville State College

Lisa Strong, Northwest Mississippi Community College

Stephen C. Burnett, Clayton State University

Reviewers

We would like to extend our deepest thanks to the following instructors who reviewed, tested, and advised on the book manuscript at its various stages of development.

Stephanie Aamodt, Louisiana State University-Shreveport

Marilyn Abbott, Lindenwood University

Ann Aguanno, Marymount Manhattan College

Holly Ahern, SUNY Adirondack

Kellie Aitchison, Finger Lakes Community College

Jon Aoki, University of Houston-Downtown

Lisa Appeddu, Southwestern Oklahoma State University

Amanda Ashley, New Mexico State University

Bert Atsma, Union County College

Hernan Aubert, Pima Community College

Rao Ayyagari, Lindenwood University

Anita Baines, University of Wisconsin-La Crosse

Ellen Baker, Santa Monica College

Laura Bannan, USC Upstate

Verona Barr, Heartland Community College

Morgan Benowitz-Fredericks, Bucknell University

Christine Bezotte, Elmira College

Charles Biles, East Central University

Curtis Blankespoor, Calvin College

Lanh Bloodworth, Florida State College-Jacksonville

Lisa Boggs, Southwestern Oklahoma State University

Cheryl Boice, Florida Gateway College

Brenda Bourns, Seattle University

Bradley Bowden, Alfred University

Ben Brammell, Eastern Kentucky University

Susan Brantley, Gainesville State College

Clay Britton, Methodist University

Carole Browne, Wake Forest University

Jamie Burchill, Troy University

Martha Smith Caldas, Kansas State University

Judith Carey, Springfield Technical Community College

Jennifer Carney, Finger Lakes Community College

Michelle Cawthorn, Georgia Southern University

Maitreyee Chandra, Diablo Valley College

Genevieve Chung, Broward College

Kimberly Cline-Brown, University of Northern Iowa

Scott Cooper, University of Wisconsin-La Crosse

Erica Corbett, Southeastern Oklahoma State University

Richard Cowart, Coastal Bend College

Jan Crook-Hill, University of North Georgia

Kathleen Curran, Wesley College

Karen Curto, University of Pittsburgh

Jennifer Cymbola, Grand Valley State University

Don Dailey, Austin Peay State University

Michael Dann, Penn State University

Craig Denesha, Spartanburg Community College

Jodi Denuyl, Grand Valley State University

Jody Lee Duek, Pima Community College-Desert Vista Campus

Jacquelyn Duke, Baylor University

Joseph Eagan, SUNY Adirondack

Ralph Eckerlin, Northern Virginia Community College

Jennifer Ellington, Belmont Abbey College

Lianna Etchberger, Utah State University-Uintah Basin Regional Campus

Sarah Finch, Florida College-Jacksonville

Ryan Fisher, Salem State University

Teri Foster, Graceland University

Patrick Galliart, North Iowa Area Community College

Cynthia Galloway, Texas A&M-Kingsville

Richard Gardner, Southern Virginia University

Dana Garrigan, Carthage College

Thomas Gorczyca, Northern Essex Community College

Jen Grant, University of Wisconsin-Stout

Sherri Graves, Sacramento City College

Andrea Green, Northeastern State University

Melissa Greene, Northwest Mississippi Community College

Sara Gremillion, Armstrong Atlantic State University

Charles Grossman, Xavier University

Cheryl Hackworth, West Valley College

Kristy Halverson, The University of Southern Mississippi

Joyce Hardy, Chadron State College

Janelle Hare, Morehead State University

Chris Haynes, Shelton State Community College

Nathaniel Hemstad, Inver Hills Community College

Timothy Henkel, Valdosta State University

Jerome Hojnacki, University of Massachusetts-Lowell

Thomas Horvath, SUNY Oneonta

Anne-Marie Hoskinson, University of Colorado-Boulder

Tonya Huff, Riverside City College

Kimberly Hurd, Bakersfield College

Catherine Hurlbut, Florida State College-Jacksonville

Joseph Husband, Florida State College-Jacksonville

Virginia Irintcheva, Black Hawk College

Evelyn Jackson, University of Mississippi

Wendy Jamison, Chadron State College

Jamie Jensen, Brigham Young University

Wanda Jester, Salisbury University

Tanganika Johnson, Southern University and A&M College

Laurie Johnson, Bay de Noc Community College

John Jones, Calhoun Community College

Leslie S. Jones, Valdosta State University

Jacqueline Jordan, Clayton State University

Arnold Karpoff, University of Louisville

Dennis Kitz, S. Illinois Univ Edwardsville

Cindy Klevickis, James Madison University

Daniel Klionsky, University of Michigan

Jennifer Kneafsey, Tulsa Community College

Olga Kopp, Utah Valley University

Dennis Kraichely, Cabrini College

David Krauss, City University of New York

Ruhul Kuddus, Utah Valley University

Wendy Kuntz, Kapiolani Community College

George Labanick, University of South Carolina-Upstate

Dale Lambert, Tarrant County College-Northeast

Elaine Larsen, Skidmore College

Brenda Leady, University of Toledo

David Lemke, Texas State University

Beth Leuck, Centenary College of Louisiana

Harvey Liftin, Broward College

Lee Likins, University of Missouri-Kansas City

Tammy Liles, Bluegrass Community and Technical College

Cayle Lisenbee, Arizona State University

Paul Lonquich, California State University-Northridge

David Luther, George Mason University

Christi Magrath, Troy University

Charles Mallery, University of Miami

Cindy Malone, California State University-Northridge

Donna Maus, Pittsburg State University

Kathy McCormick, Western Piedmont Community College

Mary McDonald, University of Central Arkansas

Terrence McGlynn, California State University-Dominguez Hills

Suzanne Meers, Gainesville State College

Diane Melroy, University of North Carolina-Wilmington

Michael Millward, Northern Kentucky University

Brenda Moore, Truman State University

Jeanelle Morgan, University of North Georgia

Ann Murkowski, North Seattle Community College

Necia Nicholas, Calhoun Community College

Zia Nisani, Antelope Valley College

Cynthia Kay Nishiyama, California State University-Northridge

Fidelma O’ Leary, St. Edward’s University

Jorge Obeso, Miami Dade College

Peter Oelkers, University of Michigan, Dearborn

Joshua Parker, Clayton State University

Monica Parker, Florida State College-Jacksonville South Campus

Virginia Pascoe, Mt. San Antonio College

David Peyton, Morehead State University

Joel Piperberg, Millersville University of Pennsylvania

Mary Poffenroth, San Jose State University

Michelle Priest, El Camino Compton Educational Center

Adrianne Prokupek-Pickett, Nebraska Wesleyan University

Dianne Purves, Crafton Hills College

Logan Randolph, Polk State College

Claudia Rauter, University of Nebraska-Omaha

Neil Reese, South Dakota State University

Nick Reeves, Mt. San Jacinto College

Tim Revell, Mount San Antonio College

Stanley Rice, Southeastern Oklahoma State University

Nelda Rogers, Brownsville Independent School District

Troy Rohn, Boise State University

Peggy Rolfsen, Cincinnati State Technical and Community College

Thomas Rooney, Wright State University

Mark Sandheinrich, University of Wisconsin-La Crosse

Celine Santiago Bass, Kaplan University

Justin Shaffer, University of North Carolina

Greg Sievert, Emporia State University

Michael Small, Texas State University

Sharon Smith, Florida State College-Jacksonville

Adrienne Smyth, Worcester State University

Stephanie Songer, University of North Georgia

Bryan Spohn, Florida State College-Jacksonville

Carol St. Angelo, Hofstra University

Kurt Stanberry, University of Houston-Downtown

Sharon Standridge, Middle Georgia State College

John Starnes, Somerset Community College

Alicia Steinhardt, Hartnell Community College

Mikel Stevens, Brigham Young University

Terri Stilson, North Seattle Community College

Gail Stratton, University of Mississippi

Lisa Strong, Northwest Mississippi Community College

Robyn Stroup, Tulsa Community College

Zuzana Swigonova, Univeristy of Pittsburgh

Don Terpening, Ulster County Community College

Janice Thomas, Montclair State University and Kean University

Ken Thomas, Northern Essex Community College

Rita Thrasher, Pensacola State College

Candace Timpte, Georgia Gwinnett College

Robert Tompkins, Belmont Abbey College

Rick Topinka, American River College

Chris Trzepacz, Murray State University

Christine Tuaillon, Nassau Community College

Linda Twining, Truman State University

Eileen Underwood, Bowling Green State University

Steve Uyeda, Pima Community College

Rani Vajravelu, University of Central Florida

Jagan Valluri, Marshall University

Dirk Vanderklein, Montclair State University

Timothy Wakefield, John Brown University

Amanda Waterstrat, Somerset Community College

Teresa Weglarz, University of Wisconsin-Fox Valley

Michael Wenzel, California State University Sacramento

Alexander Werth, Hampden-Sydney College

Wayne Whaley, Utah Valley University

Alicia Whatley, Troy University

Robert Whyte, California University of Pennsylvania

Frank Williams, Langara College

Christina Wills, Rockhurst University

Michael Wolyniak, Hampden-Sydney College

Holly Woodruff, Central Piedmont Community College

Carol Wymer, Morehead State University