Cetaceans and evolution

Cetaceans There are many forms of cetacean life living in the worlds waters. How an why they came into existence is uncertain, but there have been many theories. Some say that dolphins are aquatic forms of goats, and others believe they evolved just like everything else, from a single cell, and not from an actual multi-cellular being. Because most cetaceans have some vestigial structures such as under-developed os coxae, the former of these two theories …

…dip the tip of their snouts above the water. If I were to list anymore differences between the skeletal system of the cetaceans and our own, I would only be repeating what I said earlier on in the paper. The cetaceans of the world are marvelously built. Designed perfectly for their underwater life. Their sleek, stream-line shape allows speed, and the skeletal an physiological make-up of their bodies only adds to their already amazing abilities.