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 from around the world 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.

Aired: 6/19/2019 | 1:54:37 | Expires: 6/19/2023 | Episode
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