Whale done essay

Milinkovitch used results from molecular studies to determine that sperm whales were more closely related to the baleen whales (mysticeti) than to toothed whales (Odontoceti) (Milinkovitch. 1997). But his conclusion was not well accepted, as sperm whales have substantial teeth and a single, rather than double…

Organisms including mysticetes or baleen whales use sound as their primary means of learning about their environment and also as means of communicating, navigating and foraging for food (NC, 2003).

[Struthers, p. 142-143] he dolphins breathe through their nose, but whales' nostrils drifted back farther and farther onto the top of the head in the fossils found. oday it is just a double or single blowhole, and the ears are closed and internal, detecting only vibrations from the lower jaw. hey "speak" through a "melon organ" or pad of fat.

Although a comprehensive ban on whaling was instituted in the 1950's, marine biologists and other researchers have noted that the expected beluga whale population recovery has failed to materialize, and a number of sound theories have been put forth by qualified scientists to explain the phenomenon.