My first reason they should not resurrect extinct species is that it's very expensive. They spend so much money on trying to resurrect extinct species when there is a very low survival rate. Clones usually have respiratory problems. They have cloned a Pyrenean Ibex but it had a collapsed lung and only lived about 10 minutes. They spent so much money to have it die in 10 minutes. They should at least try to advance their technology to get a higher the success rate. The success rate ranges between .1% to 3%. That means if scientists try to clone 1,000 only 1 to 30 clones are made. That means they had 970 to 999 failures.
