1.  And inevitably, we have to use the animals to do experiments for us to reach the goal and develop a better medical treatment for human beings.

2.  Second, if it is inevitable to use animals, scientists had better use artificial organs to replace the real ones.

3.  We can use animals to test air crashes which can reduce the loss.

4.  First, it is cruel to use animal as a kind of testing method.

5.  We human beings have no right to use animal testing just for our own interests which is selfish and not consistent with our ethical values.

6.  Scientists have to make sure they obtain 3 licenses before they can carry out research using animals, besides they have to justify that any potential harm to the animals is outweighed by the possible benefit to humans.

7.  PETA believes there is no moral, ethical or scientific reason to continue using animals in medical research.

8.  Firstly, using fewer animals by employing more efficient methods or using procedures that do not involve animals is a feasible way to reduce the quantity of animals used on scientific tests.

9.  We can use fewer animals by employing more efficient methods or use procedures that do not involvement.

10.  I advocate forbidding using animals for any scientific purposes.