animals require food for survival & hunting is a kind of method for obtaining food ->  some animals must hunt to survive  some animals must hunt to survive & hunting requires sensing prey ->  some animals must sense prey to survive  if a living thing must do something to survive, then doing that something better has a positive impact on that living thing's survival & an animal is a kind of living thing ->  if an animal must do something to survive, then doing that something better has a positive impact on that animal's survival  some animals must sense prey to survive & if an animal must do something to survive, then doing that something better has a positive impact on that animal's survival ->  better senses have a positive impact on an animal 's survival  better senses have a positive impact on an animal 's survival & hearing is used for sensing sound by animals ->  better hearing has a positive impact on an animal's survival  inheriting is when an inherited characteristic is passed from parent to offspring by genetics / dna & senses are passed down from parent to offspring ->  senses are an inherited characteristic  senses are an inherited characteristic & hearing is used for sensing sound by animals ->  hearing is an inherited characteristic  better hearing has a positive impact on an animal's survival & hearing is an inherited characteristic ->  better hearing is an inherited characteristic that has a positive impact on an animal's survival  as the ability of a living thing to survive / to reproduce increases , the likelihood of passing on its traits to its decendents will increase & as the ability of a living thing to survive / to reproduce increases , the likelihood of passing on its traits to its decendents will increase0 ->  the decendants of an animal with traits that positively impacted their survival will also have traits that positivley impact their survival  better hearing is an inherited characteristic that has a positive impact on an animal's survival & the decendants of an animal with traits that positively impacted their survival will also have traits that positivley impact their survival -> the decendants of an animal with better hearing will also have better hearing