Some people argue that all experimentation on animals is bad and should be outlawed. However, others believe that important scientific discoveries can be made from animal experiments. Can experimentation on animals be justified? Are there any alternatives?

It is often considered that do experiment on

animals

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such

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as mice, rabbits or frogs should be banned, while other people think that it is essential for finding scientific

knowledge

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.

This

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essay will discuss why it is reasonable to

test

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on

animals

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and other ways to replace them. In the beginning, we cannot deny that scientists did experiments on

animals

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a long time ago. It is reasonable because they found

lots

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of information and theories which is beneficial for humans. In the past, they lacked

technologies

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to discover new

knowledge

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from other methods

instead

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of

test

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on

animals

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.

For instance

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, the German doctor found the pituitary gland which releases a hormone from the brain in frog and

this

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data help

lots

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of patients who suffer from hormone deficiency

Thus

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, it is necessary to discover the science and medical

knowledge

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from these tests.

On the other hand

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, nowadays the

technologies

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are developed in

lots

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of ways and almost 80% of experiments do not have to do on

animals

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. The GMO is one of the

technologies

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that can replace the experiment on them by using clones of human tissues or plant tissue

instead

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of the real ones. It is effective and has an accurate result.

For example

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,

lots

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of cosmetic companies in Korea use clone cells to

test

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their products

instead

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of rabbits and the result is as same as the old tests.

However

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, some studies need to

test

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on the real sample because it has unique systems that are extremely complicated . In conclusion, in the past, we could not do the tests without

animals

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because of poor innovations and

knowledge

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. These days, a lot of research does not have to use living samples, it can use new

technologies

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instead

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of the old ones.