NBB 201 Lecture Notes - Lecture 14: Animal Communication, Appeasement, Vocal Tract
9 Dec 2016
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Nbb 201 lecture 14- evolution of communication & cognition. Human language and intelligence are constantly evolving aspects of our species. Courtship displays can act as isolation mechanisms. Competition for mates generally consists of intimidation to force others to back down= actual violence is rare. Submissive signals are shown by those defeated to prevent any mistakes from alpha males. Can also act as a predator-prey signaling= no sense attacking a fully healthy prey organism where weaker ones are available. Example smiling= can be submissive (sheepish grins), a show of affiliation (easy smile: evolution of emotions, evolution of. Four main types of communication: chemical (olfactory) Includes scent marking of territory and can be used to signal condition of signaler. Humans use it in terms of pheromones (mhc= chemical that signals immune system health: auditory. Used in territorial defense, mating rituals, social co-ordination, warning of predators (some species can signal what kind of predator is approaching: visual, tactile.
