北極のトナカイが厳しい気候でどのように生き延びるのか、5つの魅力的なビデオトラックを通じて探ります。この洞察に満ちたシリーズでは、進化、自然選択、種の発展について学びます。
Evolution
1 mins • Mar 26, 2010
Charts
- 186NEW
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最近のエピソード
Mar 26, 2010
Evolution
1 mins
Mar 26, 2010
Transcript -- Evolution
Dec 24, 2008
Northern Norway
3 mins
Dec 24, 2008
Transcript -- Northern Norway
Dec 24, 2008
Mainland Reindeer
2 mins