1.如播卡顿或失败可切换片源。
2.如播放失败可点击切换线路。
3.我们最近发现视频里开始有插播广告，每个视频大概有好几秒，可以用快进跳过。这些广告都是视频源那边自带的，我们这边无法控制，谢谢大家的谅解。
年份：
2016
主演：
Martin
Yap
类别：
Animals congregate in places where their basic needs can be met: havens from predators where competition for food is manageable and breeding opportunities are abundant. Journey to the habitats of these one-of-a-kind animals and learn their survival stories, from nesting fairy penguins, to migrating caribou.
