Monday, October 29, 2007

Evolution Today

Recently I remembered an interesting article I read over the summer on the BBC News website about sharks and how they are continuing to evolve. Recently, female sharks have adapted to be able to reproduce a-sexually; this phenomenon is the result of the decreased numbers of male sharks over the past decades due to poaching of the animal. Although the a-sexually produced offspring have some genetic abnormalities and are not as strong as naturally produced sharks, they are still sharks, still functionally, and the sharks, due to this amazing example of continuing evolution, will continue to survive and keep their numbers up. I think this is an amazing thing to consider; our world is ever-changing, constantly evolving, and the organisms whose lives we effect are constantly struggling and surviving despite our often damaging impact. This is a fact we should never forget: evolution does not stop and some day, we might have to change as well or be thrown off of our throne at the top of the food chain.

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