剧情介绍
Elephants venture deep underground at Kitum cave, on the flanks of Mount Elgon, Kenya.
Waterfall-shrouded Kitum Cave has been carved out by elephants in search of salt on Mount Elgon at the Kenya-Uganda border. George gets bitten by one of the cave bats suspected of carrying the deadly Marburg virus.
“这里生长的植物严重缺乏盐分，一头成年象每天需要摄取100克盐才能维持身体机能，它们不得不另觅来源。数千年来它们已经从岩洞壁上凿下几千吨的盐矿。”