"Painstakingly researched and gorgeously written.... Casey transports us through the many truths and myths about dolphins." --USA Today

"Casey skillfully weaves global adventure travelogues, first-person reportage and deep archival research. She exhibits a flair for peppering her tales with complex scientific concepts but keeps them accessible for consumption by a broader audience without losing the narrative arc or momentum." --The Miami Herald

"A meticulously reported global odyssey.... [Casey] has an inexhaustible curiosity and a knack for fully embracing her subject." --Outside Magazine

"A reminder of the unique and complicated bond humans feel with these animals.... Casey's moving writing left me with some hope for a better future for dolphins and humans."
--Mary Bates, Slate

"What starts out as a feel-good, new-agey account darkens like the sunlight diminishing in the deep, subtly turning into a devastating chronicle of one of the most egregious mismatches in natural-human history. The result is a brilliantly written and passionate book.... timely and urgent."
--The Guardian (London)

"A passionate and richly readable account of dolphins--their world, their behaviors, and the humans whose lives revolve around studying them.... Fascinating and cautiously joyous . . . a book any lover of nature should read."
--Open Letters Monthly

"[A] blend of mystic wonder with scientific awe and downright dangerous environmental confrontations."
--InStyle

"[Casey] embarks an investigation into the world of dolphins, impressing the reader with her curiosity and thrilling sense of discovery as she travels the world to learn about these unique creatures."
--Publishers Weekly