Darwins Dangerous Idea: Evolution and the Meanings of Life by Daniel C. DennettIn a book that is both groundbreaking and accessible, Daniel C. Dennett, whom Chet Raymo of The Boston Globe calls one of the most provocative thinkers on the planet, focuses his unerringly logical mind on the theory of natural selection, showing how Darwins great idea transforms and illuminates our traditional view of humanitys place in the universe. Dennett vividly describes the theory itself and then extends Darwins vision with impeccable arguments to their often surprising conclusions, challenging the views of some of the most famous scientists of our day.
Charles Darwin's evidence for evolution
Learn about The Nobel Prizes that have been awarded since , as well as the criteria and nomination process that are used to select the winners. NASA Kids is an excellent site for "kids" of all ages and provides an abundance of information, images, and interesting things to do on astronomy and the space sciences. In this lesson, students learn about sources of high-energy radiation and calculate student exposure to ionizing radiation over the past year. To introduce the concept of evolution by natural selection from a historical standpoint and to examine the evidence and arguments that support this theory. Science never takes places in a void and evolutionary thought is no exception.
Polling and Analysis. At first glance, Charles Darwin seems an unlikely revolutionary. Growing up a shy and unassuming member of a wealthy British family, he appeared, at least to his father, to be idle and directionless.
The theory of evolution by natural selection, first formulated in Darwin's book "On the Origin of Species" in , is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring. Evolution by natural selection is one of the best substantiated theories in the history of science, supported by evidence from a wide variety of scientific disciplines, including paleontology, geology, genetics and developmental biology. More simply put, the theory can be described as "descent with modification," said Briana Pobiner, an anthropologist and educator at the Smithsonian Institution National Museum of Natural History in Washington, D. The theory is sometimes described as " survival of the fittest ," but that can be misleading, Pobiner said. Here, "fitness" refers not to an organism's strength or athletic ability, but rather the ability to survive and reproduce.
Evolution , theory in biology postulating that the various types of plants, animals, and other living things on Earth have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations. The theory of evolution is one of the fundamental keystones of modern biological theory. The diversity of the living world is staggering. More than 2 million existing species of organisms have been named and described; many more remain to be discovered—from 10 million to 30 million, according to some estimates. The virtually infinite variations on life are the fruit of the evolutionary process.
Some were personal collaborators, some were influential geologists or economists, and one was even his very own grandfather. His work inspired Darwin's ideas of natural selection. His evolutionary theory was rooted in the idea that life started out very simple and developed over time into the complex human form. Adaptations occurred as new structures that would spontaneously appear, and if they weren't used they would shrivel up and go away. Thomas Malthus was arguably the person who was most influential to Darwin.