Great Transitions: The Origin of Birds

Subject: An educational film featuring paleontologist Julia Clarke exploring the evolutionary link between dinosaurs and birds.
Core Scientific Finding: Birds descended from a specific group of carnivorous dinosaurs known as theropods.
Historical Context:
- The 1860s discovery of Archaeopteryx in Germany provided the initial evidence that birds evolved from reptiles.
- Scientific consensus shifted over the last 40 years to identify theropods as the specific ancestral group.
Educational Focus: The film demonstrates the scientific process, including hypothesis testing, evidence interpretation, and the iterative nature of revising scientific explanations.
Key Terms: Archaeopteryx, Deinonychus, dinosaur, feather, fossil, theropod.
Resource Details:
- Duration: 18 minutes and 59 seconds.
- Target Audience: High school (General/AP/IB) and college students.
- Primary Literature: John H. Ostrom’s 1969 study on Deinonychus antirrhopus.
- Curriculum Alignment: Supports NGSS, AP Biology, IB Biology, and AP Environmental Science standards.
Available Materials: Includes high/standard definition video downloads, transcripts, Spanish-language versions, and an "Abbreviated Film Guide."

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