视频简介
ENDANGERED SPECIES is an intense, action packed survival-adventure about a wealthy American family who travel to the vast African wilderness of Kenya hoping for a dream vacation filled with excitement, bonding and a chance to fix the growing rifts within their family. But when their safari vehicle is attacked by a rhino protecting her calf, the family is left stranded miles fro...。This is the epic, untold story of how same-sex marriage became law of the land. Documenting one of the greatest civil rights stories of our time, THE FREEDOM TO MARRY is a nail-biting, behind-the-scenes story that traces the marriage equality movement's historic progress, and reveals the masterminds of the movement as they lead the fight to win same sex marriage throughout the ...。穿越人类历史的长河，重新经历头脑的风暴，讲述6个改变了世界的标志性发明创造。生产力是如何改变人类生活的，人类的创造力又是如何影响世界的。。