Evolution: Online Course for Teachers: Session 4- Elaborate Part A

	SESSION 4

	Engage

	Explore

	Explain

	Elaborate

	Part A:	Speciation without Geographic Isolation

	Part B:	The Galapagos Finch Study

	Part C:	Convergent Evolution

	Part D:	Coevolution

	Evaluate


	Resources

	Facilitator Notes

SESSION 4: What Are the Processes for Evolution?

Elaborate Part A: Speciation without Geographic Isolation

		Biologist Chris Schneider believes that populations may evolve into new species without geographic isolation. To learn more about this kind of speciation, called sympatric speciation, join Schneider and his team in Ecuador in the Evolution Show One video segment, "Hummingbird Species in the Transitional Zones" and read the related background information.

Hummingbird Species in the Transitional Zones View in: QuickTime \| RealPlayer


	Teaching Evolution Home \| Technical Requirements \| Visit the Evolution Web site at PBS Online

	© 2001 WGBH Educational Foundation and Clear Blue Sky Productions, Inc. All rights reserved.