http://www.youtube.com/watch?v=nMxmhxkSs1U 5:24 I saw an evil dark side to an animal that I just didn't want to believe existed in the animal kingdom. 動物界にあって欲しくなかった残虐な一面を垣間見てしまった。
http://www.youtube.com/watch?v=yc_0_KHn5GY 0+43 Environmental activist Hilton Kelley is working to combat the dark side of the pretoleum boom. 活発な石油精製業の負の一面