Evolution: Great Transformations & Extinction!
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About this item
Great Transformations: What triggered the incredible diversity of life on earth, and how have complex life forms, including humans, evolved? Is there direction to evolution? And is human intelligence inevitable? We focus on evolution's "great transformations," among them the development of a standard four-limbed body plan, the journey from water to land, the return of marine mammals to the sea, and the emergence of humans. Driven by a combination of opportunism and a genetic "toolkit," these astounding leaps forward define the arc of evolution. And they suggest that every living creature on earth today, and every species that has ever existed, is a variation on a grand genetic theme, a member of one, and only one, tree of life. Extinction!: Some 99.9 percent of all the species that have ever lived are now extinct. While cataclysmic events on earth have pruned the tree of life, extinction also opens the door to diversity, carving out room for new species to emerge and thrive. This film explores the causes of the five mass extinctions that have occurred over the life of the planet, and takes us to the sources of extinctions happening today. In doing so, it confronts a frightening notion: Are we humans causing the next mass extinction, the sixth in the history of life on earth? If so, what does evolutionary theory predict for the world we will leave to our descendants?
ASIN: B00005YUPV
VSKU: DBV.B00005YUPV.G
Condition: Good
Binding: DVD
Note: Any images shown are stock photographs and product may differ from what is shown.
Condition Notes: Individually inspected: Guaranteed to play perfectly or your money back. Case may show wear and may be in library packaging. Ships Fast!
ASIN: B00005YUPV
VSKU: DBV.B00005YUPV.G
Condition: Good
Binding: DVD
Note: Any images shown are stock photographs and product may differ from what is shown.
Condition Notes: Individually inspected: Guaranteed to play perfectly or your money back. Case may show wear and may be in library packaging. Ships Fast!
Note on Condition
Most of the items in our store are used. The item's condition grade is indicated near the bottom of the product description. If you have any questions regarding specific details of an item, please contact us. We use the following rating scale:
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- Used - Good: All pages and cover are intact (including the dust cover, if applicable). Spine may show signs of wear. Pages may include limited notes and highlighting. Gently used ex-library books with library stickers and markings may be classified as good. Shrink wrap, dust covers, or boxed set case may be missing. Item may be missing bundled media.
- Used - Acceptable: All pages and the cover are intact, but shrink wrap, dust covers, or boxed set case may be missing. Pages may include limited notes, highlighting, or minor water damage but the text is readable. Item may but the dust cover may be missing. Pages may include limited notes and highlighting, but the text cannot be obscured or unreadable.
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- Used - Good: Case may be damaged or come repackaged. Disc may have up to 1.5cm marking but is in great working condition.
- Used - Acceptable: A product with extensive external signs of wear, but is in great working condition. The case may be damaged. The cover art, liner, notes, or other inclusion may be marked, or one or all of these items may be missing.
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