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>Apparently elephants use this form of communication for distances (I have
> heard quoted) of up to 200 km.
and Ron corrected:
>Good grief! No, perhaps 4-5 miles tops are the figures I have heard (and
>that under ideal conditions). This was worked on by Katherine Payne at
I must say I was somewhat astonished when I saw the figure of 200km! I probably
read it in some kiddies comic......tee hee!
Jonathon Woolf discussed predators hearing/localizing high frequency
sounds, and Della is proposing the use of low frequencies as predator-inaudible
communication for dinos. However, given that elephants use them (demonstrated),
and that elephants are large predator-free animals (except for man, and I can't
imagine LF were developed for _our_ non-benefit), the question is:
- do they indeed develop the ability to communicate this way as a means of not
alerting predators, or
- did they develop this simply because size = ability to produce low
Just pointing to possible red herrings (I _think_ I am anyway).