whale names | whale you go out with me Whale Whales are descendants of land-dwelling mammals of the artiodactyl purchase (even-toed ungulates). They are related to the Indohyus, an extinct chevrotain-like ungulate, from which they split approximately 48 million years ago.|19||20| Primitive cetaceans, or archaeocetes, first took to the sea about 49 million years ago and became fully aquatic 5-10 mil years later. What defines an archaeocete is the occurrence of anatomical features unique to cetaceans, alongside other 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 anatomical changes included their reading 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 alpage of the nostrils toward the ...
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