The Whale Sanctuary Project - The ancestors of whales, dolphins and porpoises (known overall as cetaceans) were land animals, known to scientists as archaeocetes, who went aquatic about 50 million years ago.
![From Land to Water: the Origin of Whales, Dolphins, and Porpoises | Evolution: Education and Outreach | Full Text From Land to Water: the Origin of Whales, Dolphins, and Porpoises | Evolution: Education and Outreach | Full Text](https://media.springernature.com/m685/springer-static/image/art%3A10.1007%2Fs12052-009-0135-2/MediaObjects/12052_2009_135_Fig1_HTML.gif)
From Land to Water: the Origin of Whales, Dolphins, and Porpoises | Evolution: Education and Outreach | Full Text
![Delphinidae Rex rough 3d model mock up, my idea for a terrestrial land dolphin that pursues land prey. : r/SpeculativeEvolution Delphinidae Rex rough 3d model mock up, my idea for a terrestrial land dolphin that pursues land prey. : r/SpeculativeEvolution](https://i.redd.it/lnjqw2ucssw31.jpg)
Delphinidae Rex rough 3d model mock up, my idea for a terrestrial land dolphin that pursues land prey. : r/SpeculativeEvolution
![From Land to Water: the Origin of Whales, Dolphins, and Porpoises | Evolution: Education and Outreach | Full Text From Land to Water: the Origin of Whales, Dolphins, and Porpoises | Evolution: Education and Outreach | Full Text](https://media.springernature.com/m685/springer-static/image/art%3A10.1007%2Fs12052-009-0135-2/MediaObjects/12052_2009_135_Fig27_HTML.gif)