Frogs Croak Excessively Before Earthquakes
Frogs increase their croaking or migrate en masse before earthquakes or heavy rains. Witnesses reported frogs swarming roads near the epicenter before the 2008 Sichuan earthquake in China. Their permeable skin acts as a sensitive detector for humidity and atmospheric pressure changes. This triggers instinctive movement away from danger zones before disasters strike. Herpetologists have documented these mass migrations for scientific study in earthquake-prone regions.