Why are ralph and jack cooperating with each other in spite of their hard feelings?

Since they both need to discover the beast and they are both terrified.  

Explanation:

Jack is chasing for sustenance in the wilderness. They've been in the island for half a month. He is being contrasted with a predator.The Jungle resembles extremely dim, calm and appears to be dreadful. It's semi-dimness in light of the fact that there are bunches of trees and plants and creepers that Jack can't see the way. The residue is moist and there is completely so hints of any animals next to Jack. The most severe piece of the wilderness is it's excessively dull that it doesn't look like of some other wildernesses on the planet and this makes an irregular, perilous inclination. Since Jack is beginning to end up agreeable in the wilderness, this demonstrates somewhat wild in him. Ralph and Simon are endeavoring to construct the asylums for every one of them to live, yet they aren't effective in light of the fact that they don't generally know the system to manufacture a safe house and have no devices,

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