Biologie Evolution
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The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world . On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history ( phylogeny ). Each page contains information about a particular group, e.g., salamanders , segmented worms , phlox flowers , tyrannosaurs , euglenids , Heliconius butterflies , club fungi , or the vampire squid . ToL pages are linked one to another hierarchically, in the form of the evolutionary tree of life. Starting with the root of all Life on Earth and moving out along diverging branches to individual species, the structure of the ToL project thus illustrates the genetic connections between all living things.
tephen Jay Gould (1941-2002) was among the best known and widely read scientists of the late 20th century. A paleontologist and educator at Harvard University, Gould made his largest contributions to science as the leading spokes-person for evolutionary theory. His monthly columns in Natural History magazine and his popular works on evolution have earned him numerous awards and one of the largest readerships in the popular-science genre — penning altogether over twenty successful books throughout his career.
[Journalists] seem to feel let down when they discover that the real people aren't anything like the way they so relentlessly portray us; as if, since they've gone to the trouble of inventing extravagant caricatures of us, we should at least have the decency to live up to them in real life.
The Burgess Shale is an exceptional Middle Cambrian age (about 540 million years ago) fossil locality located in Yoho National Park in the Rocky Mountains, near Field, British Columbia, Canada. The locality is special because of the soft-bodied preservation of a wide diversity of fossil invertebrate animals. The locality has been intensely studied since its discovery in 1909 by Charles Walcott, and has been declared a World Heritage Site. A popular introduction to the Burgess Shale can be found in Steven J.