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Lesson summary for:
Speciation: An illustrated introduction
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This video illustrates the speciation process in birds to help explain the basis of earth's biodiversity. Registration may be required to view the discussion and multiple choice questions that accompany the video.
This video is best for introductory biology courses.
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.
- Biological evolution accounts for diversity over long periods of time.
- A species is often defined as a group of individuals that actually or potentially interbreed in nature.
- Speciation is the splitting of one ancestral lineage into two or more descendent lineages.
- Speciation is often the result of geographic isolation.
- Speciation requires reproductive isolation.
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