Genetic History

The early history of Earth covers such vast stretches of time that years, centuries, and even millennia become virtually meaningless. Instead, paleontologists and scientists who study geochronology divide time into periods and eras. The current view of science is that Earth is around 4.6 billion years old, and the first four billion years of its development are known as the Precambrian period.

The evolutionary path from the original primates to modern man is a long one and has taken many twists and turns, but naturally, as the fossil record grows, scientists gain a more complete understanding of our own mental and physical history in terms of genetics and anatomy. However, the correct order and relationships of the various specimen types are difficult to pin down.

The Mesozoic Era, which lasted from about 252 to 66 million years ago, is divided into three periods, the Triassic, Jurassic, and Cretaceous. During this era, one type of life came to dominate the planet more completely and for a longer period than had been seen before or since; this was the Age of Reptiles. Beginning in the Triassic but especially in the Jurassic period, reptiles came to dominate the oceans, the land and even the skies.

“A remarkable combination of biology, genetics, zoology, evolutionary psychology and philosophy.” —Richard Powers, Pulitzer Prize-winning author of The Overstory “A brilliant, thought-provoking book.” —Matt Haig, New York Times bestselling author of The Midnight Library A...

It seems likely that scientists will someday discover how life can emerge on habitable planets like the early Earth and Mars. In Origin of Life: What Everyone Needs to Know, David W. Deamer has written a comprehensive guide to the origin of life that is organized in three sections.

Impara a costruire il tuo albero genealogico, conosci la storia della tua famiglia e sfoglia tra i ricordi dei tuoi cari. Chi erano i tuoi avi? Hai forse qualche passato nobiliare e non lo sai? E come riuscire da soli a raccogliere informazioni? Forse è meglio che ti fai aiutare da un esperto? Questo e molto altro in un ebook semplice, di facile lettura e senza pretese.

This audiobook takes a closer look at who Charles Darwin was, how he lived his everyday life and how influential he became; not just in his own day but into the modern world as well. Find out what interested his incredible mind and how Darwin presented his theories to a yet unsuspecting world. From beetles to butterflies, coral reefs and tropical islands, from apes to humans, learn how Charles Darwin's evidence speaks even to the world today.