Why might conservationists want to breed animals in captivity?

Breeding animals in captivity would protect the few endangered animals that are still alive from being hurt or from dying if they were in the wild; it would keep the newborn animals safe and help them survive; doctors would be able to observe the animals in captivity; the animals wouldn't be hurt by other animals

paine is arguying that they had tried everything before coming to the conclusion that they needed to fight for their freedom.

argument: "every quiet method for peace hath been ineffectual."

claim 1: "our prayers have been rejected with disdain; and only tended to convince us, that nothing flatters vanity, or confirms obstinacy in kings more than repeated petitioning and nothing hath contributed more than that very measure to make the kings of europe absolute."

claim 2: "wherefore, since nothing but blows will do, for god’s sake, let us come to a final separation, and not leave the next generation to be cutting throats, under the violated unmeaning names of parent and child."