Lesson summary for...

Clipbirds

Author/Source: UC Museum of Paleontology
Overview:Students learn about variation, reproductive isolation, natural selection, and adaptation through this version of the bird beak activity.
Concepts:This lesson covers the following concepts:
  • Background extinctions are a normal occurrence.
  • Evolution results from selection acting upon genetic variation within a population.
  • Traits that are advantageous often persist in a population.
  • The process by which advantageous traits are maintained and disadvantageous traits are weeded out of a population is known as natural selection.
  • Inherited characteristics affect the likelihood of an organism's survival and reproduction.
  • Depending on environmental conditions, inherited characteristics may be advantageous, neutral, or detrimental.
  • Random factors affect the survival of individuals and of populations.
  • Natural selection acts on individuals and populations in a nonrandom way.
Grade Level:9-12
Time:One class period
Teacher Background:Explore these links for additional information on the topics covered in this lesson: