In the Beat of a Heart
Life, Energy, and the Unity of Nature
Visionary biologists have advanced a theory that explains how all the living creatures of the world--from the tiny amoeba to the vast rain forest--are constructed, providing a fresh perspective on the essential interconnectivity of living systems. This revolutionary theory explains a variety of phenomena--why a shrew eats its body weight in food each day, why a mammal's heart beats about 1 billion times in its lifetime, why there are no trees as tall as the Eiffel Tower, and why more species live at the Earth's equator than at its poles. By looking at how living things use energy, we can answer these and a myriad of other intriguing questions. This book combines biography, history, science, and nature writing to capture the exciting advances--and the people who are making them--that are triggering a revolution as potentially important to biology as Newton's insights were to physics.--From publisher description.
Beyond its central premise, the book can be read through the connected lenses of Nonfiction, Philosophy. Those themes offer useful points of attention as the characters, ideas, or world develop, especially where the book complicates the expectations of its primary category.
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What the reading experience may hold
A fuller profile for choosing with more confidence—not just another copy of the preview.
Nonfiction · Philosophy
Use these as starting points rather than limits; the most memorable books often stretch beyond their catalog labels.
No specific content concerns can be confirmed from the available English catalog information. Consult a publisher or reader-supplied guide when detailed warnings matter.
These notes are inferred from available catalog information and may not be complete. Check a publisher or reader-supplied guide if you need comprehensive warnings.
Balanced tone · Measured pace
A comfortable full-length choice for steady daily reading.
A good fit if…
Readers who want a thoughtful experience and enjoy noticing the connections beneath a book’s surface story.
This book's DNA
A visual estimate based on this edition's categories, description, and length. Select a star to explore the signals.
This signal is descriptive, not a rating. It helps compare the kind of reading experience this edition may offer.
Spoiler-Free Emotional Arc
A broad estimate of the book’s emotional rhythm, shown without story events or outcomes.
This visualization is an interpretive estimate based on catalog description, categories, tone, pace, and content signals. It does not describe specific scenes.
A quick reading snapshot
Edition facts and catalog signals to help you decide whether this book fits what you want to read next.
- ISBN-13
- 978-0-3090-9681-2
- Language
- English
- Edition record
- OL9434042M
A more thoughtful way into this book
This guide uses the edition details and category signals above to help you choose deliberately. It does not replace the author's work or a full review.
A comfortable full-length choice for steady daily reading.
Begin with its place in Nonfiction, then notice where the book resists that label.
Read for connection, not completion.
Mark one passage that sharpens the book's central concern and one that complicates it. That tension often reveals more than a quick summary.
Three questions to carry with you
- Whose perspective organizes the story, and whose perspective remains outside it?
- Which sources or lived experiences carry the author’s central argument?
- How does the book change the way you understand its larger subject?
Editorial framework by Wesley Bryan, BookenDeX Founder and Editor.
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These matches combine shared categories with author, publication-era, and reading-length signals.
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Why it fits: shares Nonfiction, a similar reading length, a similar publication era.
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Why it fits: shares Nonfiction, a similar reading length, a similar publication era.