Thursday, July 15, 2010

Whales are distributed throughout the world's oceans .... whale live

Whales are distributed throughout the world's oceans and seas, from the Equator to the polar ice, except for the landlocked Caspian and Aral seas. Whales must surface regularly to breathe, evacuating their lungs more completely than most mammals in an almost explosive breath known as a . Despite living in a medium that has much greater characteristics than air, whales, like other mammals, must regulate their body temperature. These members of the extinct suborder are the primitive whales from which modern whales are derived. Archaeocetes gave rise to the living suborders: the baleen whales (suborder Mysticeti) and the toothed whales (suborder Odontoceti). Humans have long utilized stranded whales as a food resource, and historically whales were hunted for and baleen. Scientific concern over the increased catch of whales in the Southern Hemisphere in the 1930s led to the ratification of the International Whaling Convention and the founding of the in 1946. Through the years th! is agency has acted to moderate whaling, and it instituted a moratorium on commercial whaling in the late 1980s. whale live

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