Which delicacy are pigs often used to locate?
Domestic pig distinct wavelength sensitivities (blue and green) suggests that at least some colour vision is present. Pigs have a well-developed sense of smell, and use is made of this in Europe where they are trained to locate underground truffles. Olfactory rather than visual stimuli are used in the identification of other pigs. Hearing is also well developed, and localisation of sounds is made by moving the head. Pigs use auditory stimuli extensively as a means of communication in all social activities. Alarm or aversive stimuli are transmitted to other pigs not only by auditory cues but also by pheromones. Similarly, recognition
Delicacy being treated, as they were in Europe, as a delicacy. Some delicacies are confined to a certain culture, such as fugu in Japan, bird's nest soup (made out of swiftlet nests) in China, and ant larvae (escamoles) in Mexico. Delicacy A delicacy is usually a rare or expensive food item that is considered extremely desirable, sophisticated or peculiarly distinctive, within a given culture. Irrespective of local preferences, such a label is typically pervasive throughout a region. Often this is because of unusual flavors or characteristics or because it is rare or expensive compared to standard staple foods. Delicacies vary per