The Truth of Sea Cow Evolution

Описание: The manatees and the dugong are among the most beloved creatures on our planet. They have some fascinating anatomy and an even more fascinating evolutionary history, originating more than 50 million years ago. So, let’s dive into the evolution of these wonderful creatures, exploring their rich fossil record and how they went from living on land to becoming rotund, dense-boned underwater lawnmowers.

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0:00 - Intro
0:38 - What are sea cows?
3:41 - Anatomy of sirenians
8:14 - Early sea cow evolution
14:13 - Hydrodamalinae (Steller's sea cow)
16:43 - Dugonginae (Dugong lineage)
19:06 - Trichechidae (Manatee lineage)
22:19 - Seagrass evolution
24:55 - Conclusion