Getting A Leg Up On Whale And Dolphin Evolution: New Comprehensive Analysis Sheds Light On The Origin Of Cetaceans

A comprehensive study that builds on previous phylogenetic research on cetaceans and that combines morphology, genetics, and behavior confirms that the closest living relative is the hippo and demonstrates that the closest fossil relative is Indohyus. These evolutionary relationships imply that stem whales adapted to water first, and then to carnivory.

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