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Did you know that 98 percent of organisms that ever lived are now extinct? PBS Digital Studios presents viewers with information about previous extinctions, their causes, and related statistics such as what percent of organisms went extinct. The video then explains why some scientists consider Earth to be in a sixth mass extinction event.
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Instructional Ideas
- Have learners research each of the previous five mass extinctions
Classroom Considerations
- Learners need to have basic knowledge of the geologic time scale
- Pupils should also know what it means for a species to be an invasive species
- This video is hosted on YouTube
Pros
- YouTube site provides links to additional resources
- Video introduces many geologists and biologists like Lyell, Darwin, Alvarez, etc.
Cons
- None