The tangled bank an introduction to evolution pdf. 1. The Tangled Bank: An Introduction to Evolution Carl Zimmer; 2. Publisher: W. H. Freeman. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates research. The Tangled Bank: An Introduction to Evolution. Carl Zimmer takes the title of his book, The Tangled Bank: An Introduction to Evolution, from the last paragraph of Darwin's Origin: “It is.
|Language:||English, Spanish, French|
|Genre:||Business & Career|
|ePub File Size:||16.52 MB|
|PDF File Size:||14.71 MB|
|Distribution:||Free* [*Sign up for free]|
Biological diversity (or biodiversity for short) is one of the most intriguing features of life. Why are there so many insects on Earth and so few mammals? Why is. The tangled bank: an introduction to evolution. [Carl Zimmer] -- "The Tangled Bank is the first textbook about evolution intended for the general reader. Zimmer . Author: Zimmer Pages: Publication Date Release Date: ISBN: Product Group:Book Download Read The Tangled Bank: An.
From Natural Philosophy to Darwin -- 3. What the Rocks Say -- 4. The Tree of Life -- 5. Evolution's Molecules -- 6. The History in our Genes -- 8.
Minds and Microbes: The Evolution of Behavior.
Responsibility: Carl Zimmer. Abstract: "The Tangled Bank is the first textbook about evolution intended for the general reader. Zimmer, an award-winning science writer, takes readers on a fascinating journey into the latest discoveries about evolution.
In the Canadian Arctic, paleontologists unearth fossils documenting the move of our ancestors from sea to land. In the outback of Australia, a zoologist tracks some of the world's deadliest snakes to decipher the million-year evolution of venom molecules.
In Africa, geneticists are gathering DNA to probe the origin of our species. In clear, non-technical language, Zimmer explains the central concepts essential for understanding new advances in evolution, including natural selection, genetic drift, and sexual selection.
He demonstrates how vital evolution is to all branches of modern biology-from the fight against deadly antibiotic-resistant bacteria to the analysis of the human genome. Richly illustrated with illustrations and photographs, The Tangled Bank is essential reading for anyone who wants to understand the history of life on Earth.
Reviews Add a review and share your thoughts with other readers.
One hypothesis for why sex persists is based on its ability to produce new genotypes. If a mutation is beneficial, the descents with that mutation become more common faster than in populations that reproduce asexually. Two beneficial mutations can combine in one individual, raising its fitness even more than either could on its own.
The harmful mutations, meanwhile, can be eliminated faster from the population as a whole. In asexual species, there's no way to separate the bad mutations from the good.
The bad mutations continue to accumulate, dragging down the average fitness of the population. The Red Queen hypothesis.
According to another hypothesis, parasites are responsible for sex. A parasite can lower the fitness of its host in many ways-by killing its host outright, making it too sick to find a mate, or damaging its reproductive organs. Hosts vary in their defenses to parasites; some have genes that make them especially vulnerable, while others can resist most infections.