What's that?

 

Something unseen caught Geoffs' attention, it often does. I wondered if our auditory perception and sense of smell were once more acute than they are today; I know chimps have an acute sense of smell. I came to the conclusion that we must have had at some point. I imagine our hunter gather ancestors still had to some degree, and that contemporary hunter gathers would be far more attuned to their environments that we'd be; their environment surely necessitated it. They say that like us dogs have a 6th sense too, though dog boffins believe that unlike us dogs are more likely to trust it.