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ចំណាយពេលតិចជាង ១ នាទីដើម្បីចុះឈ្មោះបន្ទាប់មកអ្នកអាចរីករាយនឹងចំណងជើងភាពយន្តនិងទូរទស្សន៍គ្មានដែនកំណត់។

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Frogs: The Thin Green Line 2009 ការចូលប្រើដោយឥតគិតថ្លៃគ្មានដែនកំណត់

Frogs: The Thin Green Line 2009 ការចូលប្រើដោយឥតគិតថ្លៃគ្មានដែនកំណត់

An examination of the extinction threat faced by frogs, which have hopped on Earth for some 250 million years and are a crucial cog in the ecosystem. Scientists believe they've pinpointed a cause for the loss of many of the amphibians: the chytrid fungus, which flourishes in high altitudes. Unfortunately, they don't know how to combat it. Included: an isolated forest in Panama that has yet to be touched by the fungus, thus enabling frogs to live and thrive as they have for eons.

ប្រភេទ: , ,

ខាស:

នាវិក: , , , , ,

ស្ទូឌីយោ:

ពេលរត់: 60 នាទី

គុណភាព: HD

ការដោះលែង: Apr 05, 2009

ប្រទេស:

ភាសា: English

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