Activity

Using DNA to Explore Lizard Phylogeny

Curated and Reviewed by Lesson Planet

On the Caribbean islands, lizards expanded into different niches instead of competing for resources. Scholars discuss and learn from experts in a video how scientists prove the theory. They build phylogenetic trees based on appearances and then adapt their understanding with updated DNA results.

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Additional Tags
Instructional Ideas
  • Challenge pupils to research and create a phylogenetic tree of another group of animals
  • Discuss how phylogenetic trees changed when DNA analysis added another level of understanding
Classroom Considerations
  • Relies on prior knowledge of natural selection, evolution, adaptation, niches, DNA, species, and phylogenetic trees
Pros
  • Provides background information and a link to additional resources
  • Includes all resources in both English and Spanish
Cons
  • None