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The mystery may now be solved by a study showing that a hammerhead gives sharks outstanding binocular vision and an ability to see through 360 degrees.
PowerPoint Downloads: In Your Inner Fish, Neil Shubin tells the story of evolution by tracing the organs of the human body back millions of years, long before the first creatures walked the earth.
Learn about the many scientists and thinkers who have made contributions towards the theories of evolution, from Aristotle to scientists of the 20th Century. and speciation. Well worth a look.
A general site on evolution that covers: systematics, dinosaur discoveries, vertebrate flight, and a thorough coverage of important people whose ideas influenced the development of evolutionary theory.
This website is hosted by the University of Waikato and has been developed to provide a web based resource for use by teachers, especially in the science fields of evolution and geological time.
Contains articles as well as animations on a variety of issues ranging from Darwin's theories, extinction, the need for sex, survival, and the coexistence of evolution and faith. Excellent, well worth a look.
This web page lists links to other websites. Subheadings include: the history of evolutionary thought, evidence for evolution, mechanisms of evolutionary change, sexual selection, origin of new species, fossil rec
A New Zealand site, presenting an excellent resource on the flightless nocturnal bird , the Kiwi. Includes sections on taxonomy, adaptations and the bird's current survival issues.
What defines a species? How do species originate? This site answers these questions by examining reproductive isolation, geographic isolation and the evolutionary tree.
Talk. Origins is a Usenet newsgroup devoted to the discussion and debate of biological and physical origins. Most discussions center on the creation/evolution controversy, but other topics include the origin of life, geology, and mechanisms of evolution.
Understanding Evolution is a non-commercial, education website, teaching the science and history of evolutionary theology. This site is here to help you understand what evolution is, how it works, how it factors into your life, how research in evolutionary biology is performed, and how ideas in this area have changed over time.
This site provides access to a huge collection of correspondence generated by Darwin during his lifetime. Letters form the largest single category of Darwin's working papers (this website contains details of around 14,500 surviving letters) and were one of the most important means by which he gathered data and discussed ideas. They provide a remarkably complete picture of the development of his thinking, throwing light on his formative years and the years of his voyage around the world on H.M.S. Beagle.
The term "Darwinism" has numerous meanings depending on who has used the term and at what period. This page, which is part of the Talk.Orgins site, explains how Darwin's thoughts can be partitioned into about five separate theories.
In the study, published in the journal Science, the scientists transferred prion populations from brain cells to other cells in culture and observed the prions that adapted to the new environment out-competed their brain-adapted counterparts.
When returned to the brain cells, the brain-adapted prions again took over the population.
In 1988 Richard Lenski started growing cultures of Escherichia coli. Twenty-one years later the professor of microbial ecology reveals new details about the differences between adaptive and what appeared to be more random and neutral genetic mutations. The findings might eventually help scientists better understand mutations in human diseases and infections.
Did you know that thanks to a common little snail you can find in your garden, in the park or under a hedge, you can see evolution in your own back yard? OK, so evolution is a very slow process. Life on Earth started about three-and-a-half billion years ago!
A Japanese team studied the development of turtle embryos to find out why their ribs grow outward and fuse together to form a tough, external carapace. The scientists do not yet know what causes the folding. "That belongs to a future project," said Dr Kuratani, but have revealed a spectaculation on how the unique animals get their shells.
Few studies have tested the idea, and three done on rodents could not find any evidence it was true. "Ours is the fourth and the first to demonstrate significant directional selection on metabolism," says Nespolo.
Deer mice are one of the most abundant and widespread mammals in North America. Usually the mice have a dark coat, which enables them to blend in with dark soils and avoid being seen by predators such as owls and hawks. But at Sand Hills in Nebraska, pale-coated mice abound.
Hosted by the excellent Talk Origins Archive site, this provides a (very long!) thorough explanation of what evolution is, common misconceptions about evolution, and the currently understood models by which it is thought to operate.
Provides excellent examples of transitional fossils in the fossil record as a means of providing evidence for evolution (hosted by the excellent Talk.Origins Archive site).
Most biologists take for granted the idea that all life evolved by natural selection over billions of years. They get on with researching and teaching in disciplines that rest squarely on that foundation.This PDF contains 15 examples published by Nature over the past decade or so to illustrate evolutionary thinking.
The Burgess Shale is an exceptional Cambrian age fossil site located in the Rocky Mountains, Canada. The locality is special because of the soft-bodied preservation of a wide diversity of fossil invertebrate animals.
According to a pattern, the study's authors point out, extinctions are likely to eliminate entire branches of the evolutionary tree. The finding is based on an examination of past extinctions, but could help current conservation efforts.
Excerpted from the Florida Museum of Natural History Fossil Horse Cybermuseum, this webpage discusses the fossil history of the horse, and provides links to more detailed aspects.
Megafauna Links
These two links provide interesting information about the Megafauna which once roamed the Earth.
The importance of the fossil record at Naracoorte Caves was officially recognised in 1994, when the site was inscribed on the World Heritage List. The park preserves 600 ha of remnant vegetation, with 26 caves contained within the 305 ha World Heritage Area.
Hosted by the Talk.Origins Archive site, explains scientific research has demonstrated that the Earth is very old, as well as looking at how common criticisms of this finding can be rebuffed.
The Paleo Ring is a newly developing collection of websites and pages that are devoted primarily to the promotion of palaeontology, prehistoric archaeology, the evolution of behaviour, and evolutionary biology in general.
Scientists have long known that cetaceans (whales, dolphins, and porpoises) descended from four-footed land mammals. Cetaceans evolved rapidly, and the entire transition from land mammal to obligate marine whale took less than 8 million years. This web site is hosted by the world's leading research center into whale evolution at the Northeastern Ohio Universities College of Medicine and College of Pharmacy.
We may never be able to prove beyond any doubt how life first evolved. But of the many explanations proposed, one stands out - the idea that life evolved in hydrothermal vents deep under the sea.
PETER MITCHELL was an eccentric figure. For much of his career he worked in his own lab in a restored manor house in Cornwall in the UK, his research funded in part by a herd of dairy cows. His ideas about the most basic process of life - how it gets energy - seemed ridiculous to his fellow biologists.
Hosted by Access Excellence, this site conducts an interview with Dr. Miller about the conditions for life on Earth. Includes the Panspermia theory and the Miller-Urey Electric discharge experiment designed to examine conditions essential for life.
With the recent discovery of a truly monstrous virus, scientists are again casting about for how best to characterize these spectral life-forms. The new virus, officially known as Mimivirus (because it mimics a bacterium), is detailed in this Discover article.