In Class Apr. 20th: selective pressures

colors-2-_custom-afc93498ec5df91f516ee25aa3141c750524cd16-s700-c85To consider the concept of selective pressure, we will…

  • Listen to this NPR news story about color and discuss these questions: (a) what selective pressure(s) are mentioned in the news story? (b) what is the result of the pressures?
  • Listen to the Weekend Edition news story “In Just 6 Generations, Butterflies Brighten Their Colors“, then consider (a) what selective pressures are being applied (b) by what or whom (c) resulting in what final outcome?

If you’re curious about the color-creating structures of butterfly wings mentioned in the NPR stories, give this Deep Look video a watch.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s