Friday, 9 May 2014

Extinction

We decided to do out podcast on extinction as we found it very interesting and came up with the idea whilst visiting the National Museum of Cardiff.

Extinction is the end of somethings life, this can happen to any type of organism and is when the species has completely died out.  It is difficult to find when an organism becomes extinct as the range of the species may be vast and they may be difficult to find. Sometimes a species that is said to be extinct can sometimes 're-appear' which is known as Lazarus taxa. Usually extinction is caused by climate change, natural disasters and human intervention, sometimes the species are able to adapt and evolve to fit in with the changes around them, however this is usually not the case and unfortunately they die out.


One of the most notorious organisms made extinct are the dinosaurs, these were made extinct by the crashing of a meteor into the earth which destroyed all food sources and killed off the majority of them. However some were able to survive such as amphibians, they were able to adapt to the drastically changed climate. Today hundreds of animals become extinct each year with this usually being the result of human intervention, due to the ever growing population these species habitats are becoming destroyed and they are hunted for their fur, meat and horns.

 
A number of organisations have been established so as to ensure the survival of these rare species, parks are establish and breeding programs so as to not only ensure their safety but to try and repopulate. Sadly however the majority of these animals protected will eventually die out.

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