Overfishing: Oceans Are Dying
This is the Hall of Fame for all around the world Sea Shepherd Conservation Society advocates. This is our tribute for supporting our cause and for defending the Oceans and
| 'Stress' is shrinking polar bears |
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| Tuesday, 25 August 2009 16:26 | |||
Their study, in the Journal of Zoology, describes changes in size and shape that could be linked an increase in pollution and the reduction in sea ice. Physical "stress" caused by pollutants in the bears' bodies, and the increased effort needed to find food, could limit the animals' growth, the team said. The researchers used the skulls as indicators of body size. The skulls from the later period were between two and 9% smaller. "Imagine you have two twins - one is well fed during its growth and one is starving. (The starving) one will be much smaller, because it will not have enough energy to allocate to growth." ... Read Full Article by Victoria Gill 
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Scientists compared bear skulls from the early 20th Century with those from the latter half of the century.
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