本片是一部美国纪录片片，上映于2019-06-19，由Chad Cohen导演，由李·佩斯主演。
剧情简介：From voracious crocodiles and acrobatic birds to stupendous whales and majestic elephants, When Whales Walked: Journeys in Deep Time 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.
外文名：When Whales Walked: Journeys in Deep Time
别名：When Whales Walked: a Deep Time Journey
类型：纪录片
地区：美国
导演：Chad Cohen
演员：李·佩斯
