Anaimal
Páginas: 2 (300 palabras)
Publicado: 29 de mayo de 2011
ENDANGERED ESPECIES
What does Endangered mean?
Officially, threatened species are those listed as Critically Endangered (CR), Endangered (EN) or Vulnerable (VU).
Practically thismeans:
* Critically Endangered (CR): A species facing an extremely high risk of extinction in the wild.
* Endangered (EN): A species considered to be facing a very high risk ofextinction in the wild.
* Vulnerable (VU): A species considered to be facing a high risk of extinction in the wild.
In the time is takes you to read this work, one of ourplanet’s unique species will become extinct. By this time tomorrow, a further 150–200 will have disappeared forever. And by this time next year, over 50,000 more.
People all over the worldare working to help save endangered animals from extinction. There are conservation organizations which try to make people aware of the problems facing wild animals. Some of the waysin which they are being saved include habitat protection, captive breeding, setting up nature reserves and parks and using alternative products in place of products from rare animals.Governments can help by making international agreements between countries to protect animals (many countries, for example, have agreed to stop hunting the blue whale). Scientists aresetting up gene banks in which they keep an animal's genetic material (the 'building blocks' of a living thing) in suspended animation. This technique may make it possible in the futureto 'grow' a new animal of the same species.
This alarming rate of extinction is 100-1,000 times, and perhaps even 11,000 times, greater than the expected natural rate.
One in fourof the world’s mammals are now threatened with extinction in the near future. So are one in eight birds, one in five sharks, one in four coniferous trees, and one in three amphibians.
What does Endangered mean?
Officially, threatened species are those listed as Critically Endangered (CR), Endangered (EN) or Vulnerable (VU).
Practically thismeans:
* Critically Endangered (CR): A species facing an extremely high risk of extinction in the wild.
* Endangered (EN): A species considered to be facing a very high risk ofextinction in the wild.
* Vulnerable (VU): A species considered to be facing a high risk of extinction in the wild.
In the time is takes you to read this work, one of ourplanet’s unique species will become extinct. By this time tomorrow, a further 150–200 will have disappeared forever. And by this time next year, over 50,000 more.
People all over the worldare working to help save endangered animals from extinction. There are conservation organizations which try to make people aware of the problems facing wild animals. Some of the waysin which they are being saved include habitat protection, captive breeding, setting up nature reserves and parks and using alternative products in place of products from rare animals.Governments can help by making international agreements between countries to protect animals (many countries, for example, have agreed to stop hunting the blue whale). Scientists aresetting up gene banks in which they keep an animal's genetic material (the 'building blocks' of a living thing) in suspended animation. This technique may make it possible in the futureto 'grow' a new animal of the same species.
This alarming rate of extinction is 100-1,000 times, and perhaps even 11,000 times, greater than the expected natural rate.
One in fourof the world’s mammals are now threatened with extinction in the near future. So are one in eight birds, one in five sharks, one in four coniferous trees, and one in three amphibians.
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