"Of course , this says nothing of the reality that other bats would have to be able to receive and interpret this new sonar-producing capability , which would also require the evolution of new hardware .... randomly , of course ."
"The words `` reality `` and `` have to `` should never have been added to that sentence . The reality is , bats could have evolved echolocation as a navigating tool , and learned to apply it to hunting and communication later . After all , all three uses require the same `` hardware `` : an organ to generate the sonar , and an organ to receive it ."
"this says nothing of the reality that other bats would have to"
"The words `` reality `` and `` have to `` should never have been added to that sentence ."