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Evolution of Animal Behavior

Whether behaviors are controlled mainly by genes or by the environment is controversial.

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A Dome With A View
Teacher Contributed

A Dome With A View

courtesy of MBARI

Student Exploration

No Way That's Real!

Find out more information here: http://www.mbari.org/news/news_releases/2009/barreleye/barreleye.html

Extension Investigation

If you need help scratching a mental itch, use the resources below:

  1. What are the two dark spots which occur above the barreleye's mouth?
  2. What are the believed prey of barreleyes and how do these prey relate to their "transparent dome" adaptation?
  3. Why is it important for barreleyes to be able to rotate their eyes?
  4. Does the barrel eye gain any advantages by having large numbers of cones and the visual pigment rhodopsin in their eyes?

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