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News stories tagged with "evolution"

Evolution debate alive in Chazy theater

Elections for the Kansas state board of education this week centered on a furious debate over evolution, Darwinism, and biblical creationism. The fight over science and faith continues to rage in America. This weekend at the Chazy Central Rural School, a local theater company will stage a production of Inherit the Wind. Brian Mann spoke with director Andrew LaFontaine. He says the debate over Darwin's theory has proved much more enduring than the play's authors expected.  Go to full article
Sickle cell anemia may be an adaptation to malaria.
Sickle cell anemia may be an adaptation to malaria.

Natural Selections: Malarial Coevolution

Dr. Curt Stager and Martha Foley talk about malaria, the pandemic killer of the tropics, thought by biologists to be an example of coevolution in action. While the protozoan that causes the disease evolves to survive treatment and eradication measures, humans evolve at the same time to cope with the ravages of the disease.  Go to full article
Surface and cave species of <i>astyanax</i>
Surface and cave species of astyanax

Natural Selections: Evolution or Devolution

When creatures lose organs they once had, such as cave-dwelling fish that lose functional eyes, is this evolution or devolution? Dr. Curt Stager and Martha Foley look for what is gained when something's lost in nature's accounting.  Go to full article
Hot spring bacteria
Hot spring bacteria

Natural Selections: Recognizing Life

Martha Foley and Dr. Curt Stager talk about finding life in space. Will we know it when we see it? One clue to what it might resemble comes from life in extreme environments on Earth.  Go to full article

Natural Selections: Domesticating Foxes

Since 1959, the Russian geneticist Dmitri Belyaev and his successors have been experimenting in the domestication of a new species, the arctic fox. By breeding for human-friendly behavior, they found that physical traits we associate with domestic animals also developed. Dr. Curt Stager and Martha Foley consider floppy ears and curly tails.  Go to full article
Passenger Pigeon
Passenger Pigeon

Natural Selections: The Effects of Extinction

Extinction of a species can influence the survival of others species within the same habitat. Martha Foley and Dr. Curt Stager weigh the possible impact.  Go to full article

Natural Selections: Evolution (and Guppies)

Is the idea behind evolution to eventually form the "perfect" creature? Martha Foley and Dr. Curt Stager talk about the directions evolution can take.  Go to full article

Natural Selections: Evolutionary Adaptation

Martha Foley and Dr. Curt Stager discuss sickle cell anemia as a case study in the pros and cons of evolutionary adaptation.  Go to full article

Natural Selections: Primates

A human male and a male chimpanzee have as much in common, genetically, as a man and a woman. Dr. Curt Stager and Martha Foley look at our evolutionary cousins, primates.  Go to full article
Many strains or staph bacteria show resistance to drugs.
Many strains or staph bacteria show resistance to drugs.

Natural Selections: Drug Resistance

Bacteria and viruses can adapt with extreme speed to survive exposure to antibiotics and other drugs. Dr. Curt Stager and Martha Foley talk about the genetic changes and rapid evolution known as drug resistance.  Go to full article

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