A． slugging them out for territorial defense for their offspring
B． fighting with each other to own harems of female
C． their act of aggression against other animal
D． competing fiercely with each other for locating meal

A． Certain types of elephant behavior can be explained through a seismic sens
B． Lions probably use the vibration detectors in their paws to locate meal
C． Crickets may pick up and use seismic component of the song to distribute themselve
D． Observations of animal seismic signaling have implications for earthquake predictio