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bad storms. Always nature is our home address. Nature
gives us our elements and air, food and water. Nature also
includes all that is alive. So, nature is full of life or not.
99% of the life that has ever lived on Earth is not alive today.
Nature - Links of Life is the true story of the connection
between rocks, plants and us humans. We live in an
awesome, colorful but ever changing world.
The book - Big Die, is the story of the theories of earth's mass extinctions. The causes include too cold then too hot weather around the world. Also, atmosphere is a contributor as the amounts of oxygen and green house gases change over time. Other causes are from space. This includes collisions with comets and asteroids to killer radiation rays from star bursts.
Fossils show us that our home planet can turn hostile. The hope for the human race is to take care of our current home planet. Even, as we explore space to build a backup place to call home.
Paul Falkowski looks "under the hood" of microbes to find the engines of life, the actual working parts that do the biochemical heavy lifting for every living organism on Earth. With insight and humor, he explains how these miniature engines are built—and how they have been appropriated by and assembled like Lego sets within every creature that walks, swims, or flies. Falkowski shows how evolution works to maintain this core machinery of life, and how we and other animals are veritable conglomerations of microbes.
A vibrantly entertaining book about the microbes that support our very existence, Life's Engines will inspire wonder about these elegantly complex nanomachines that have driven life since its origin. It also issues a timely warning about the dangers of tinkering with that machinery to make it more "efficient" at meeting the ever-growing demands of humans in the coming century.
The very latest discoveries in paleontology--many of them made by the author and his students--are integrated with emerging insights from molecular biology and earth system science to forge a broad understanding of how the biological diversity that surrounds us came to be. Moving from Siberia to Namibia to the Bahamas, Knoll shows how life and environment have evolved together through Earth's history. Innovations in biology have helped shape our air and oceans, and, just as surely, environmental change has influenced the course of evolution, repeatedly closing off opportunities for some species while opening avenues for others.
Readers go into the field to confront fossils, enter the lab to discern the inner workings of cells, and alight on Mars to ask how our terrestrial experience can guide exploration for life beyond our planet. Along the way, Knoll brings us up-to-date on some of science's hottest questions, from the oldest fossils and claims of life beyond the Earth to the hypothesis of global glaciation and Knoll's own unifying concept of ''permissive ecology.''
In laying bare Earth's deepest biological roots, Life on a Young Planet helps us understand our own place in the universe--and our responsibility as stewards of a world four billion years in the making.
In a new preface, Knoll describes how the field has broadened and deepened in the decade since the book's original publication.
Al describir qué procesos, tanto biológicos como geológicos, actúan para controlar los niveles de oxígeno en la atmósfera, el autor rastrea a través del tiempo los registros de la concentración de oxígeno. El lector aprende acerca del «gran suceso de oxidación», el punto de inflexión en que, hace 2.300 millones de años, el contenido de oxígeno dela Tierrase incrementó radicalmente, y Canfield examina cómo la oxigenación creó un entorno favorable para la evolución de los animales. El autor guía a los lectores por las diversas líneas de evidencia científica, considera algunos de las vías erróneas y callejones sin salida que han surgido en el camino, y destaca a los científicos que han hecho los descubrimientos clave en el campo.
Mostrando cómo la atmósfera de la Tierrase ha desarrollado en el tiempo, Oxígeno conduce a los lectores en un viaje extraordinario por la historia de la oxigenación de nuestro planeta.