【114分钟英字完整版】【纪录片.PBS.鲸鱼行走的世代：深时之旅.When.Whales.Walked.Journeys.in.Deep.Time.2019】陆上鲸鱼、四齿大象、飞奔鳄鱼、飞行恐龙，动物进化的长河中曾出现奇异的物种。以化石为关键的钥匙，本片讲述鳄鱼、鸟类、鲸鱼、大象等动物的深时（Deep Time）演变。《霍比特人》李·佩斯旁白。
A站英字已发。官网简介：
Discover the evolutionary secrets of some of the world’s most majestic creatures. From voracious crocodiles and acrobatic birds to stupendous whales and majestic elephants, WHEN WHALES WALKED follows top scientists on a global adventure as they follow clues from the fossil record and change what we thought we knew about the evolution of iconic beasts. http://t.cn/Aipq3uce