{"schema_version":"bf_book_companion_v1","release_id":"20260417T232332Z","book":{"amazon_purchase_url":"https://www.amazon.com/dp/0062968823?tag=bookfrontier-20","asin":"0062968823","authors":["Patrik Svensson"],"book_id":"9780062968821","canonical_url":"https://bookfrontier.com/books/the-book-of-eels-0062968823","cover_image_url":"https://img.bookfrontier.com/9780062968821.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","description":"Part H Is for Hawk , part The Soul of an Octopus , The Book of Eels is both a meditation on the world’s most elusive fish—the eel—and a reflection on the human condition Remarkably little is known about the European eel, Anguilla anguilla . So little, in fact, that scientists and philosophers have, for centuries, been obsessed with what has become known as the “eel question”: Where do eels come from? What are they? Are they fish or some other kind of creature altogether? Even today, in an age of advanced science, no one has ever seen eels mating or giving birth, and we still don’t understand what drives them, after living for decades in freshwater, to swim great distances back to the ocean at the end of their lives. They remain a mystery. Drawing on a breadth of research about eels in literature, history, and modern marine biology, as well as his own experience fishing for eels with his father, Patrik Svensson crafts a mesmerizing portrait of an unusual, utterly misunderstood, and completely captivating animal. In The Book of Eels, we meet renowned historical thinkers, from Aristotle to Sigmund Freud to Rachel Carson, for whom the eel was a singular obsession. And we meet the scientists who spearheaded the search for the eel’s point of origin, including Danish marine biologist Johannes Schmidt, who led research efforts in the early twentieth century, catching thousands upon thousands of eels, in the hopes of proving their birthing grounds in the Sargasso Sea. Blending memoir and nature writing at its best, Svensson’s journey to understand the eel becomes an exploration of the human condition that delves into overarching issues about our roots and destiny, both as humans and as animals, and, ultimately, how to handle the biggest question of all: death. The result is a gripping and slippery narrative that will surprise and enchant.","forthcoming":false,"isbn13":"9780062968821","publication_date":"20210413","publisher":"HarperCollins","slug":"the-book-of-eels","subtitle":"Our Enduring Fascination With the Most Mysterious Creature in the Natural World","title":"The Book of Eels"},"discovery":{"categories":{"all":[{"bisac_code":"SCI070020","confidence_band":"medium","label":"Invertebrate Biology","score":0.8083,"source":"bisac_hint_model"},{"bisac_code":"SCI070010","confidence_band":"high","label":"Fish & Amphibian Biology","score":0.7924,"source":"bisac_hint_model"},{"bisac_code":"NAT045050","confidence_band":"medium","label":"Coasts & Shorelines","score":0.7129,"source":"bisac_hint_model"}],"hint":[{"bisac_code":"SCI070020","confidence_band":"medium","label":"Invertebrate Biology","score":0.8083,"source":"bisac_hint_model"},{"bisac_code":"SCI070010","confidence_band":"high","label":"Fish & Amphibian Biology","score":0.7924,"source":"bisac_hint_model"},{"bisac_code":"NAT045050","confidence_band":"medium","label":"Coasts & Shorelines","score":0.7129,"source":"bisac_hint_model"}],"publisher":[{"bisac_code":"BIO009000","confidence_band":"high","label":"Philosophers' Lives","score":1,"source":"onix_publisher_code"},{"bisac_code":"BIO026000","confidence_band":"high","label":"Personal Memoirs","score":1,"source":"onix_publisher_code"},{"bisac_code":"NAT012000","confidence_band":"high","label":"Fish","score":1,"source":"onix_publisher_code"},{"bisac_code":"PHI004000","confidence_band":"high","label":"What We Can Know","score":1,"source":"onix_publisher_code"},{"bisac_code":"PHI009000","confidence_band":"high","label":"Philosophy Overviews","score":1,"source":"onix_publisher_code"},{"bisac_code":"SCI008000","confidence_band":"high","label":"Biology","score":1,"source":"onix_publisher_code"},{"bisac_code":"SCI020000","confidence_band":"high","label":"Ecology","score":1,"source":"onix_publisher_code"},{"bisac_code":"SCI039000","confidence_band":"high","label":"Marine Biology","score":1,"source":"onix_publisher_code"}]},"genres":[{"label":"Invertebrate Biology","score":0.8083,"slug":"invertebrate-biology"},{"label":"Fish & Amphibian Biology","score":0.7924,"slug":"fish-amphibian-biology"},{"label":"Coasts & Shorelines","score":0.7129,"slug":"coasts-shorelines"}],"reader_fit":["Good for readers who enjoy Invertebrate Biology","Good for readers interested in book club","Good for readers who enjoy Invertebrate Biology and Fish & Amphibian Biology."],"related_lists":[],"series":null,"similar_books":[{"authors":["James Prosek"],"book_id":"9780060566128","cover_image_url":"https://img.bookfrontier.com/9780060566128.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":19.7685,"title":"Eels","url":"https://bookfrontier.com/books/9780060566128"},{"authors":["Rose George"],"book_id":"9780393881479","cover_image_url":"https://img.bookfrontier.com/9780393881479.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":15.6084,"title":"Every Last Fish","url":"https://bookfrontier.com/books/9780393881479"},{"authors":["Valerie A. Kells","Kent Carpenter"],"book_id":"9780801898389","cover_image_url":"https://img.bookfrontier.com/9780801898389.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":15.5008,"title":"A Field Guide to Coastal Fishes","url":"https://bookfrontier.com/books/9780801898389"},{"authors":["Zackary A. Graham"],"book_id":"9781469685731","cover_image_url":"https://img.bookfrontier.com/9781469685731.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":15.4248,"title":"Crayfish, Crawfish, Crawdad","url":"https://bookfrontier.com/books/9781469685731"},{"authors":["Stacy Alaimo"],"book_id":"9781517918736","cover_image_url":"https://img.bookfrontier.com/9781517918736.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":14.7411,"title":"The Abyss Stares Back","url":"https://bookfrontier.com/books/9781517918736"},{"authors":["Jonathan Balcombe"],"book_id":"9780374537098","cover_image_url":"https://img.bookfrontier.com/9780374537098.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":14.1801,"title":"What a Fish Knows","url":"https://bookfrontier.com/books/9780374537098"},{"authors":["Valerie A. Kells","Luiz A. Rocha","Larry G. Allen","& 0 more"],"book_id":"9781421418322","cover_image_url":"https://img.bookfrontier.com/9781421418322.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":13.1279,"title":"A Field Guide to Coastal Fishes","url":"https://bookfrontier.com/books/9781421418322"},{"authors":["Gerald R. Allen","Roger Swainston","Gerald A Allen","Jill Ruse"],"book_id":"9780804852791","cover_image_url":"https://img.bookfrontier.com/9780804852791.jpg?v=20260417T232332Z%3A2026-04-17T23%3A23%3A32Z","score":13.012,"title":"A Field Guide to Tropical Reef Fishes of the Indo-pacific","url":"https://bookfrontier.com/books/9780804852791"}],"topics":[{"evidence_refs":["keyword:science"],"label":"Science","score":0.2945,"slug":"science"},{"evidence_refs":["keyword:books about marine life"],"label":"Life","score":0.1448,"slug":"life"},{"evidence_refs":["keyword:book about eels"],"label":"About","score":0.1285,"slug":"about"},{"evidence_refs":["phrase_map_match"],"label":"Book Club","score":0.0914,"slug":"book-club"}],"what_you_get":["Themes: Science, Life, Book Club.","Reading lane: Invertebrate Biology and Fish & Amphibian Biology.","Publisher: HarperCollins."]},"llm_signals":null,"source_presence":{"amazon":true,"book_detail":true,"goodreads":true,"llm_signals":false,"similarity_seed":true},"stats":{"amazon_ratings_count":1376,"goodreads_ratings_count":22826,"goodreads_reviews_count":3075,"quality_score":0.9951}}