Tuesday, August 25, 2009

Causes of Polar Bear’s shrinking

Did you know that one of the most endangered species on earth which is the polar beer was recently found out shrinking? Study shows that the cause of the sudden shrinking of the polar bear is due to the man’s abused activities on our mother earth. Scientists try to compare the bear skulls during the early 20th century from those skulls in the half century. And they found out that there are big differences between the polar bear’s sizes and shape in this present time. And according to them, the pollution and the decreasing of the sea ice could contribute the causes of the shrinking of the body and shape of the polar bears.

Another factor that could cause the shrinking of the polar bears sizes is due to physical stress from the polar bear’s polluted bodies as well as due to the increased effort they exert when looking for their food.

As we noticed it is not only the polar bears that had been affected by the human activities but there are still many animal species. If we continue these damaging activities it would not only kill millions of animal species but as well as human beings, which is in fact already starting since the previous years. Let’s renew the world and make it a better place to live.