New Explorers (Television program) Spiral of silence.
Notes:
Originally produced for the television program New Explorers. Host/narrator, Bill Kurtis.
Summary:
Test tube zoo looks at endangered species which disappear at the rate of 100 species a day, mostly due to habitat destruction, pollution, disease and poaching. Zoo scientists have started a plan of action to increase populations of endangered species using reproductive technology. Spiral of silence discusses how geneticists from the University of California at Berkeley are studying the genes of a Costa Rican family to determine why half of a generation became deaf.
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