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Overview:
Evolutionary biologist Sean Carroll introduces the field of Evo-Devo, using examples from fruit flies, butterflies, and icefish to explain how this research is transforming our understanding of evolution.
This video is available from the New York Times website.Author/Source:
New York Times Grade level:
9-12 Time:
10 minutes Teaching tips:
This short video would make an easy introduction to a unit on developmental genetics for an AP biology course. Concepts: - Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry.
- Features sometimes acquire new functions through natural selection.
- An organism’s features reflect its evolutionary history.
- Similarities among existing organisms provide evidence for evolution.
- Developmental similarities of living things often reflect their relatedness.
- Scientists test their ideas using multiple lines of evidence.
- Scientific knowledge is open to question and revision as we come up with new ideas and discover new evidence.
- Scientists use multiple research methods (experiments, observational research, comparative research, and modeling) to collect data.
- Science is a human endeavor.
- Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa.
- Scientists use developmental evidence to infer the relatedness of taxa.
- Scientists use fossils (including sequences of fossils showing gradual change over time) to learn about past life.
- Environmental changes may provide opportunities that can influence natural selection.
Teacher background: |
