whale 7d hologram | whales n dolphins Whale Whales are descendants of land-dwelling mammals of the artiodactyl buy (even-toed ungulates). They are associated with the Indohyus, an wiped out chevrotain-like ungulate, from which they will split approximately 48 mil years ago.|19||20| Primitive cetaceans, or archaeocetes, first took to the sea approximately 49 million years ago and became fully aquatic 5-10 million years later. What specifies an archaeocete is the occurrence of anatomical features distinctive to cetaceans, alongside various other primitive features not found in modern cetaceans, such as noticeable legs or asymmetrical pearly whites.|21||22||23||9| Their features started to be adapted for living in the marine environment. Major anatomical changes included their hearing set-up that channeled heurt from the jaw to the earbone (Ambulocetus 49 mya), a streamlined body and the growth of flukes on the tail (Protocetus 43 mya), the...
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