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Salamanders trained to come for food at the sound of a tone responded only at
low frequencies, up to 244 hertz in one specimen and to 218 hertz in three others
. Frogs, which are of special interest because they first live in the water as ...
Yet, although the seal has made an adjustment for hearing in water, it has not
sacrificed the quality of its aerial hearing, which remains at an excellent level,
especially for one frequency around 2,000 hertz and another around 12,000
Beyond 15,000 hertz there are many irregularities but, in general, the sensitivity
declines at a rapid rate. ... The most sensitive range for this species is around
4,000 to 15,000 hertz, after which there is a fairly rapid decline in the upper ...
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LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review