• [History of life: Grades 9-12] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. (LS4.A)
• [History of life: Grades 13-16] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
• [History of life: Grades 9-12] Biological evolution accounts for diversity over long periods of time. (LS4.A, LS4.D)
• [History of life: Grades 9-12] Life forms of the past were in some ways very different from living forms of today, but in other ways very similar. (LS4.A)
• [History of life: Grades 13-16] Biological evolution accounts for diversity over long periods of time.
• [History of life: Grades 13-16] Life forms of the past were in some ways very different from living forms of today, but in other ways very similar.
• [Evidence of evolution: Grades 9-12] The fossil record provides evidence for evolution.
• [Evidence of evolution: Grades 9-12] The fossil record documents the biodiversity of the past.
• [Evidence of evolution: Grades 9-12] There are similarities and differences among fossils and living organisms.
• [Evidence of evolution: Grades 13-16] The fossil record provides evidence for evolution.
• [Evidence of evolution: Grades 13-16] The fossil record documents the biodiversity of the past.
• [Evidence of evolution: Grades 13-16] There are similarities and differences among fossils and living organisms.
• [Studying evolution: Grades 9-12] Our knowledge of the evolution of living things is always being refined as we gather more evidence.
• [Studying evolution: Grades 9-12] Our understanding of life through time is based upon multiple lines of evidence.
• [Studying evolution: Grades 9-12] Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa. (LS4.A)
• [Studying evolution: Grades 9-12] Scientists use anatomical evidence to infer the relatedness of taxa. (LS4.A)
• [Studying evolution: Grades 9-12] Scientists use fossils (including sequences of fossils showing gradual change over time) to learn about past life.
• [Studying evolution: Grades 13-16] Our knowledge of the evolution of living things is always being refined as we gather more evidence.
• [Studying evolution: Grades 13-16] Our understanding of life through time is based upon multiple lines of evidence.
• [Studying evolution: Grades 13-16] Scientists use multiple lines of evidence (including morphological, developmental, and molecular evidence) to infer the relatedness of taxa.
• [Studying evolution: Grades 13-16] Scientists use fossils (including sequences of fossils showing gradual change over time) to learn about past life.

• Disciplinary Core Idea LS4.A: Evidence of Common Ancestry and Diversity
• Disciplinary Core Idea LS4.D: Biodiversity and Humans

This article includes a set of discussion and extension questions for use in class. It also includes hints about related lessons that might be used in conjunction with this one. Get more tips for using Evo in the News articles in your classroom.

Additional teaching tips for 13-16:
Use this resource to relate evolutionary concepts to the topic of animal diversity (or get more suggestions for incorporating evolution throughout your biology syllabus).

• Classification/Phylogenetics
• History of Life