A. Content Objective: The pentadactyl limb is an example of adaptive radiation and provides evidence for a common ancestor.
B. Language Objective: Explain how the pentadactyl limb structure is related to different methods of locomotion.
C. Syllabus Statements:
Evolution of homologous structures by adaptive radiation explains similarities in structure when there are differences in function.
Application: Comparison of the pentadactyl limb of mammals, birds, amphibians and reptiles with different methods of locomotion.
Activity 1 - Evolution Video - Tetrapod Limbs
A. Strengthen Your Skills
Bioninja - Adaptive Radiation and the Pentadactyl Limb
Understanding Evolution - Adaptive Radiation
B. Expand Your Knowledge
How do you change limbs? Change gene expression