While home to alligators, panthers, and mosquitoes, South Florida's swamps also harbor half of the native orchid species growing in the United States and Canada. Earth Edition - Delicate Blooms: South Florida's Native Orchids treks deep into the backwaters of the Sunshine State - the orchid capital of the U.S. - to glimpse these precious flowers in their natural habitat. The program travels into the heart of the Greater Everglades ecosystem, to a part of Florida seldom seen by tourists. During the program, scientists explain why orchids are so rare and explore the threats endangering them, including poachers, logging, insecticides, changes in the region's hydrology, and increased development.

Sunday, 8/5/07 from 5-5:30 a.m. ET

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