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Bryanna Shovels

Birds Evolve Shorter Wings To Escape Traffic Crush : NPR - 0 views

    • Bryanna Shovels
       
      Example of adaptation
  • In fact, some birds may be evolving shorter wings to let them navigate traffic more safely.
  • Well, the most surprising thing was that the wing length on these road kill birds was longer than on a sample of birds that had died accidentally in mist nets. And we think that these net fatalities probably represent a sample of the population at large. So when we compared the road kills with the population at large, we found that the road kills had significantly longer wings.
  • ...1 more annotation...
  • Cars and trucks kill some 80 million birds a year on U.S. roads, a source of death that may now be a powerful force of natural selection.
keara netherton

The history of life: looking at the patterns - 0 views

  • The central ideas of evolution are that life has a history — it has changed over time — and that different species share common ancestors
  • how these trees are constructed, and how this knowledge affects biological classification. You will also find a timeline of evolutionary history and information on some specific events in the history of life: human evolution and the origin of life.
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    evolution
keara netherton

Mechanisms: the processes of evolution - 0 views

    • keara netherton
       
      points on how evolution works 
  • Evolution is the process by which modern organisms have descended from ancient ancestors. Evolution is responsible for both the remarkable similarities we see across all life and the amazing diversity of that life
  • Descent and the genetic differences that are heritable and passed on to the next generation; Mutation, migration (gene flow), genetic drift, and natural selection as mechanisms of change; The importance of genetic variation; The random nature of genetic drift and the effects of a reduction in genetic variation; How variation, differential reproduction, and heredity result in evolution by natural selection; and How different species can affect each other's evolution through coevolution.
Nathaniel Johnson

NOVA | PBS - 0 views

shared by Nathaniel Johnson on 15 Apr 14 - Cached
Bryanna Shovels

Science News - Science Articles and Current Events | LiveScience - 0 views

shared by Bryanna Shovels on 15 Apr 14 - Cached
    • Bryanna Shovels
       
      Girl you still cute though
    • Nathaniel Johnson
       
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Bryanna Shovels

HowStuffWorks "Understanding Evolution" - 0 views

  • Evolution is the result of the tendency for some organisms to have better reproductive success than others -- natural selection.
Nathaniel Johnson

Work at home - 0 views

Who wants to work at home first, even doe everyone should be working at home.

work

started by Nathaniel Johnson on 15 Apr 14 no follow-up yet
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