Dear MEL School’s Topic Readers,
Birds 'heard
tornadoes coming' and fled the day before
How could birds
sense extreme weather conditions? It has been said in Japan that catfish can
sense an earthquake coming. Sometimes birds fly away to somewhere when nothing
seems unusual to human’s eyes. Then, how come these little golden-winged
warblers that weigh only less than nine grams flew hundreds of kilometers just
in time to avoid the tornadoes that devastated their nesting area?
The researchers
think that the deep rumble that tornadoes produce, infrasound whose frequency
is well below what humans can hear, might have been sensed by the birds to take
an such evasive action. If that is the case, humans may be able to develop
something that hears or detects such infrasound, just like infrared, to warn occurrence
of extreme weather conditions like tornados or thunderstorms or even an earthquake
in the future.
Enjoy reading and
learning about the latest finding of Mother Nature.
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