I think its survive btw I'm am reading that book
Could I see the sentences, please?
Sentence 1 is the topic sentence. other sentences are based on 1 to support sentence 1, elaborating the topic sentence.
The passage is centered on the theme of belonging in a certain pack or group. Buck may be a bit different from the others but as Buck tried to be like them and did what they usually do, it gathered the trust of the pack especially the leaders. To belong in a group, one should gain their trust.