Anthropologists and Gameskeepers

It occurs to me that since elephants can hear down to one cycle per second (Hz) and bats can hear
up to perhaps 200,000 Hz (200 kHz) one may wish to know why an android could not do a better
job of being an anthropologist or gamekeeper if he was outfitted with microphones which could
detect sounds utilized by both elephants and bats.  Since many of these jobs still require that the
applicant be human, should not the job go to a human who has been outfitted with electronic
hearing aids that allow the perception of sounds between 1 Hz and 200 kHz?

Donbot

Approximate Frequency Range of Hearing for Various Animals

Animal                           Frequency (hertz)
             low       high

Humans                         20      20,000
Cats                              100      32,000
Dogs                               40      46,000
Horses                            31      40,000
Elephants                         1      12,000
Cattle                             10      40,000
Bats                           1,000     150,000
Grasshoppers              100      50,000
Rodents                    1,000     100,000
Whales and dolphins   70     150,000
Seals and sea lions    200      55,000
Gamekeeper (preferred)  1    200,000

If the dogs leave when they notice that the elephants are stampeding, are they avoiding the
tsunami or earthquake and being smarter than the average human?

Shouldn't the woman who turns on the emergency siren be able to sense from 1 Hz to 200,000 Hz?

If you lived near LA or Istanbul, perhaps you would be more likely to agree.

DB