SOCIOL 1Z03 Study Guide - Quiz Guide: Tim Hortons, Media Create, Philo Farnsworth
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SOCIOL 1Z03 Full Course Notes
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It"s a guideline of how to act in a society. As brain size increased, birthing needed to occur at an earlier age of development because a large head would not fit through a female"s birth canal. This resulted in the need for greater parental care as the offspring were born at a less advanced developmental stage. Scientists believe that this change probably occurred with homo erectus around 1. 9 million years ago: pair-bonding the attachment of a male to a female is believed to have occurred between 2. 4 and 1. 9 million years ago. As offspring became more dependent for longer periods of time, the need grew to secure food and to protect the young: subsistence the stages in acquiring and distributing food took place over a number of periods. Evidence of tools used for hunting date as far back as 2. 6 million years, while evidence of organized hunts dates back 500 000 years.
