12 年前
视频简介
NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One ...。《王朝》迷你剧集共5集，与BBC最新自然历史纪录片《王朝》相呼应，讲述片中五大珍稀物种的幼崽，克服重重困难长大成年，迎接命中注定的挑战。我们邀请了人文科普大神，国家博物馆讲解员“河森堡”倾情献声。。
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古装历史
复仇
萌宠
