> You really have to consider
>actual frequency and strength of the signal as well as the human
One study that I particularly enjoyed in graduate school was the
presentation of reports on animal hearing capacities.....this topic
reminds me of the one I did on elephants. These big guys can hear fqs
down into the teens, up to 4 km away through the savannahs of
Africa....Also, of course, they emit the same fqs sounds.
Marsha --- the JAne Goodall of Audiology