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billfruit
on Dec 8, 2019
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Great White Sharks Are Terrified of Orcas
I'd guess the ancestor was some thing resembling a hippo, like these sea surfing hippos from West Africa:
https://youtu.be/ZvyBmXn7Euc
Also see this informative graphic:
https://www.juneauwhalewatch.com/wp-content/uploads/2017/07/...
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Also see this informative graphic: https://www.juneauwhalewatch.com/wp-content/uploads/2017/07/...