Textbook Problem

(1) It appears that animals may be able to predict earthquakes. (2) Prior to a major quake in China, hundreds of snakes suddenly appeared from hibernation and froze to death in the snow, (3) fish were seen leaping from rivers and Likes, and (4) cows and horses refused to enter barns. Also, (5) prior to a quake in Fremont, California, a flood of callers reported strange behavior from their pets and domestic animals.