To Wendy Pfeffer , my teacher, mentor, and friend --B.T.

To my husband, Frank, whose love and support make everything possible. I also wish to thank Beth Dirksen, senior aviculturalist at sea World San Diego. I am grateful for her enthusiasm and invaluable advice, and for arranging my unforgettable (but chill) visit "up close" with emperors. --H.K.D.

Special thanks to marine biologist Frank s. Todd, executive director of EcoCepts International, who has studied and observed emperor penguins in Antarctica for more than twenty-five years.