SpinelessBy: Juli Berwald "A book full of wonders" Helen Macdonald, author of H Is for Hawk "Witty, insightful. . . . The story of jellyfish. . . is a significant part of the environmental story. Berwald's engaging account of these delicate, often ignored creatures shows how much they matter to our oceans' future." New York Times Book Review Jellyfish have been swimming in our oceans for well over half a billion years, longer than any other animal that lives