Previos biological analyses dating back to the mid 1970s concluded that an innate (genetically based_ seismic=excape responses was unlikely to have evolved in animals, due to the impression that earthquakes were ¡§ ¡K too rare to establish a selective advantage that might permit genetic fixation of such a characteristics,¡¨ and the question of ¡§whether most species could take successful evasive action even if they had advanced knowledge of an impending earth-quake¡¨ (Gans, 1976). Both of these concerns need re-evaluation.
A commonly raised objection to the concept that animals might detect earthquake precursors is the fact that the life spans of most animals are much shorter than the typical repeat time of large seismic events. Therefore, they are unlikely to remember any precursory signals. Kirschvink¡¦s argued that animals might be able to detect earthquake because animal behavior is susceptible to genetic control. Kirschvink suggested that through the course of......
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