After the Asian tsunami, there are reports that the local indigenous people can feel the crisis imminent in time, and they fled to higher places with wildlife to avoid the upcoming disaster. To this end, scientists are working on related research I hope to find out the reason for this behavior. What does this passage mean? ['A mysterious phenomenon has caught the attention of scientists.', 'There is a scientific phenomenon that has attracted the attention of scientists.', "There is a specific behavior that has sparked scientists' interest in research.", 'There is a specific behavior that causes a fascinating reaction from scientists.']