Specialized defense and anti-specialized defense are two types of reactions in the evolutionary process of the species. The former refers to the specific evolutionary response of the two species in the co-evolutionary process of defense. For example, the Ghana spider puts The net is built, and at dawn, the net is demolished to deal with the predatory spider bee during the day. Anti-specialization defense is relative to specialization defense, which refers to the behavioral response of species to break the special defense of other species. According to the above definition, which of the following is anti-specialization defenses? ['A rattlesnake can make a sound when its tail is shaking, sometimes used to warn natural enemies such as eagles.', 'The wolves live in a group, usually seven horses in a group, together resisting the attacks of lions and tigers.', "The snail's head has four tentacles. When you move around, your head is extended, and when you are surprised, your head and tail are retracted into the carapace.", 'Antelope avoids cheetah predation and chooses to hunt at night. Cheetahs sometimes prey at night.']