PSYC 3100 Lecture Notes - Lecture 10: Time Preference, Joint Attention, Confirmation Bias
23 Mar 2016
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A species is called social if, during its life cycle, it engages in sustained cooperaion that goes beyond parental care and the coninued associaion of mated pairs. Includes: foraging, travel, nest building, nest defense. Colonial invertebrates (sponges, coral), eusocial insects, mammals such as lions, elephants, corvids (blue jays), primates (apes and humans) Beneits: groups of individuals can achieve things that individuals cannot. If parental care is provided by females, and the energy costs to care exceed those providable by a single females for primates, then alloparental care is essenial to primate evoluion as we know it. Vigilance is essenial to predator detecion, groups can distribute vigilance across many members, division of labour: scanning for predators alternaing with feeding. Animals can share foraging duty and share informaion about feeding sites, foraging groups may be small if food sources are patchy, larger if they are big-patchy. Do lions, wolves and hyenas socialize for this reason: not lions.
