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Teaching materials:
Teaching materials database
Found 8 resources for the concept: Rates of evolution vary
 | Interview: Geerat Vermeij on the Fossil record
This interview with MacArthur Fellow and paleobiologist, Geerat Vermeij, covers much ground, including adaptations in the mollusks he studies, evolutionary arms races, punctuated equilibrium, extinctions, macroevolution, and the value of diversity.
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 | Species, speciation and the environment
Niles Eldredge gives a historical overview of scientists' thinking on the process of speciation, along with modern perspectives on this issue.
This article appears at ActionBioscience.org.
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 | Evo in the news: One small fossil, one giant step for polar bear evolution
This news brief from April 2010 describes what scientists have learned by extracting DNA from a polar bear fossil more than 100,000 years old. Though the fossil itself was just a fragment of the skeleton—the lower left portion of the jaw, still containing a tooth—the DNA had a lot to say about polar bear evolution.
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 | Evo in the news: Oxygen as an evolutionary constraint
This news brief from November 2009 focuses on how changes in atmospheric chemistry may have factored into the evolution of life on Earth—specifically, life’s quadrillion-fold growth spurt from microscopic bacteria to organisms the size of the blue whale.
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 | Evo in the news: Hotspots for evolution
Why are there so many different species in the tropics? This news brief, from June 2006, suggests why: warmer weather may be linked to a quicker pace for evolution.
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 | Parsimonious explanations for punctuated patterns
Punctuated equilibrium is sometimes erroneously cited as evidence that evolutionary biology still hasn't figured out how evolution works. In fact nothing could be further from the truth. Punctuated equilibrium builds on (not tears down!) established evolutionary theory. Find out how the process works.
This article appears at SpringerLink.
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