ANFS350 Lecture Notes - Lecture 6: Agnosticism, Respiratory Tract, Vomeronasal Organ

• School: University of Delaware
• Department: Animal and Food Sciences
• Course: ANFS350
• Professor: Emara Marlene

Document Summary

Links to other biological areas (evolution, genetics, physiology, neurology, conservation, welfare) Can be a window into the cognitive world of animals. Visual signals travel the speed of light (instantaneous) Auditory signals are intermediate and depend on medium in which the signal travels (340 m/s in air) Chemical or olfactory signals are slow (few seconds to days) Some signals persist for long periods of time (chemicals, pheromones) and receiver can come to signal. Most signals are directional and move from signaler to receiver. The habitat can affect the signal (ex open grassland vs forest) A high density of signaling can interfere with communication. Vocalization is important for both short and long distances. Interpretation of the meaning of the call is difficult. Must look at the response that the call produces. Level of excitement seemed to control type of call. Squealing - given when pigs are more excited and rushing. Increased excitement in pigs is associated with increase.