Sentence 1: Cody didn't feel as if he needed Adam to babysit his exploring. 
 Sentence 3: As they hiked, Adam spotted some wolves in the distance 
 Sentence 4:  If it weren't for his sharp senses, Cody would have missed the pack 
 Sentence 5:  He reluctantly thanked Adam for his observational skills 
 Given Sentence 2: Adam insisted he came along to make sure Cody would be safe.