观看免费视频 Yellowstone National Park: Wolf Cascade

(7.38 MB) 添加日期13 May 2016 播放183次 动物 野生动物 Nature
重置
Zoom out
Zoom in
Yellowstone National Park: Wolf Cascade

动画说明:

Wolves are are inextricably linked to many other animal and plant species. The trophic cascade of effects caused by their reintroduction is being studied.

|