7 whalers cove winnipeg | whale shark giving birth Whale Whales are descendants of land-dwelling mammals of the artiodactyl buy (even-toed ungulates). They are related to the Indohyus, an extinct chevrotain-like ungulate, from which that they split approximately 48 , 000, 000 years ago.|19||20| Primitive cetaceans, or archaeocetes, first took to the sea around 49 million years ago and became fully aquatic 5-10 million years later. What becomes an archaeocete is the occurrence of anatomical features exceptional to cetaceans, alongside different primitive features not present in modern cetaceans, such as noticeable legs or asymmetrical teeth.|21||22||23||9| Their features started to be adapted for living in the marine environment. Major physiological changes included their hearing set-up that channeled heurt from the jaw to the earbone (Ambulocetus 49 mya), a streamlined body and the regarding flukes on the tail (Protocetus 43 mya), the im...
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