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Saving The Whales
Many species of whale are under threat of extinction but the changes needed to ensure their survival are the same as the ones needed to ensure the continued survival of the planet as a whole. All mammals breathe air into their lungs and whales are no exception. These aquatic mammals are descendants of mammals that have gone back to the sea and those huge creatures were of the order artiodacyla and they had many similarities to the modern day hippopotamus. Molecular biology and DNA testing gives convincing evidence for this connection and verifies that whales entered the water approximately 50 million years ago. Whales are divided into two broad groups called baleen and toothed whales. There was a third group but this is now totally extinct. Changes in the environment and the increasing use of sonar equipment on board ships has affected the toothed whales very badly. It disrupts their sonar so that hunting is not as effective and it misdirects their navigational abilities. This could be a major contribution to the disturbing incidences of whales beaching themselves, or getting stuck upstream in rivers. Whales are warm blooded creatures and they give birth to live young, just like other mammals do. They feed their young milk from mammary glands and even have hair on their bodies. All these things are proof of the link with land mammals. Yet, we are destroying them because of lack of care with our environment!
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Contributor's Note
This is part of an article previously posted at Triond by Louie Jerome.
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Writer Soup
Humpbacked Whale
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May, 2012
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