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

such

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

knowledge

.

This

essay will discuss why it is reasonable to

test

on

animals

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

animals

a long time ago. It is reasonable because they found

lots

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

technologies

to discover new

knowledge

from other methods

instead

of

test

on

animals

.

For instance

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

this

data help

lots

of patients who suffer from hormone deficiency

Thus

, it is necessary to discover the science and medical

knowledge

from these tests.

On the other hand

, nowadays the

technologies

are developed in

lots

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

animals

. The GMO is one of the

technologies

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

instead

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

For example

,

lots

of cosmetic companies in Korea use clone cells to

test

their products

instead

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

However

, some studies need to

test

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

because of poor innovations and

knowledge

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

technologies

instead

of the old ones.