Cancer kills endangered animals
June 26, 2009 – 1:34 am 
wild animals die from cancer as often as men: 10% of human and animal deaths rested with cancer.
specialists from the Society for the Conservation of Wildlife (WCS) reviewed the available information and concluded that the cancer is very dangerous for some animal species facing extinction.
For example, from malignant tumors can be completely vymeret Tasmanian (Tasmanian) devil. This unique marsupial, living exclusively on the island of Tasmania, is suffering from skin cancer. For the first time, the spread of the disease in the devil was discovered in 1996. Since then the cancer has destroyed 70% of the population. The disease is caused by bites during the bizarre ritual of the pre-mating, and during the fights for foodstuffs. To save the population, zoologists carry devil in a geographically isolated area and in zoos.
The researchers also found evidence that between the incidence of cancer in animals and pollution of the atmosphere by human activities, there is a direct link. For example, beluga whales living in the Gulf of St. Lawrence (Canada), very often suffer from bowel cancer. The disease causing polycyclic aromatic hydrocarbons (PAHs). These carcinogens are a frequent cause of cancer in humans. American somik-cat, and English sole, living in polluted waters, where most other species of fish are sick with cancer.
According to researchers, a major role in causing cancer in animals played viruses. Thus, the viral nature has cancer of the reproductive organs, which are increasingly striking in California sea lions, dolphins and dolphins dim Burmeister. Another kind of viral cancer – fibropapillomatoz in which tumors develop on the skin and internal organs, they are sick green sea turtles.
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