Episode #122

News Items

    Correction About Male and Female Evolution

    • re: Science or Fiction? segment – while male mammals have an XY chromosome and so present changes in phenotype easily, don’t male birds actually carry two sex chromosomes of the same type (ZZ) while females carry different ones (ZW)? Wouldn’t this mean that the mechanism for phenotype is different between birds and mammals? Thanks!

      Meme Gene
      Seattle

      reference:
      biology.about.com/library/weekly/aa091103a.htm

    Science or Fiction

    • Item #1 Fiction

      A new discovery indicates that human consumption of chocolate is at least 150 thousand years old.

    • Item #2 Science

      Using a computer analysis of the human genome and evolutionary principles, researchers have discovered 300 new human genes.

    • Item #3 Science

      Physicists have developed a method for manipulating light that is one million times more efficient than existing methods.

    Skeptical Quote of the Week.