She introduces us to a dozen species, some already gone, others facing extinction, including the Panamian golden frog, staghorn coral, the great auk, and the Sumatran rhino. Through these stories, Kolbert provides a moving account of the disappearances occurring all around us and traces the evolution of extinction as concept, from its first articulation by Georges Cuvier in revolutionary Paris up through the present day.
The sixth extinction is likely to be mankind's most lasting legacy; as Kolbert observes, it compels us to rethink the fundamental question of what it means to be human.
Slime molds are very different from other organisms; they feed as individual amoebae before coming together to form a multicellular organism that has a remarkable ability to move and orient itself in its environment. Furthermore, these social amoebae display a sophisticated division of labor; within each organism, some cells form the stalk and others become the spores that will seed the next generation.
In The Social Amoebae, Bonner examines all these parts together, giving a balanced, concise, and clear overview of slime mold biology, from molecules to cells to multicells, as he advances some unconventional and unexpected insights.
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John Tyler Bonner, one of our most distinguished and creative biologists, here offers a completely new perspective on the role of size in biology. In his hallmark friendly style, he explores the universal impact of being the right size. By examining stories ranging from Alice in Wonderland to Gulliver's Travels, he shows that humans have always been fascinated by things big and small.
Why then does size always reside on the fringes of science and never on the center stage? Why do biologists and others ponder size only when studying something else--running speed, life span, or metabolism? John Tyler Bonner is professor emeritus of ecology and evolutionary biology at Princeton University. Reviews Review Policy. Published on. Flowing text, Original pages. Best For. Web, Tablet, Phone, eReader. Content Protection. Read Aloud. Learn More. Flag as inappropriate. It syncs automatically with your account and allows you to read online or offline wherever you are.
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John Tyler Bonner. John Tyler Bonner, a major participant in the development of biology as an experimental science, is the author not only of important monographs but also of a wonderfully readable book, Life Cycles, which is both a personal memoir and a profound commentary on the central themes of biology. This volume of essays presents new material that extends the concepts from Life Cycles and his other writings. Its originality lies in comparing key basic biological processes at different levels, from molecular interactions through multicellular development to behavior and social interactions.
The first chapter in the book discusses self-organization and natural selection; the second, competition and natural selection; and the third, gene accumulation and gene silencing. For instance, the principle that complexity increases in proportion to size is upheld both by the diversity of cell types in large as compared to small creatures and by the greater specialization of labor found in human societies of differing sizes. His research pioneered the study of cellular slime molds to understand evolution and development.
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Number of Pages:. Bonner sums up his arguments in five rules given on page 5 : Strength varies with size.
John Tyler Bonner. John Tyler Bonner, one of our most distinguished and creative biologists, here offers a completely new perspective on the role of size in biology. John Tyler Bonner is professor emeritus of ecology and evolutionary biology at Princeton University. John Tyler Bonner, one of our most distinguished and creative biologists, here offers a completely new perspective on the role of size in biology. In his hallmark .
Surfaces that permit diffusion of oxygen, of food, and of heat in and out of the body, vary with size. The division of labor complexity varies with size.
Sally Green. Get an immediate offer. Changes in size are not a consequence of changes in shape, but the reverse: changes in size often require changes in shape. Email to friends Share on Facebook - opens in a new window or tab Share on Twitter - opens in a new window or tab Share on Pinterest - opens in a new window or tab. Es wurden noch keine Bewertungen geschrieben.