... Darwin made an observation that completely changed the way mankind viewed its origins. In 1859 Darwin's book the Origin of species carefully made a compassions that all mammals related to an evolved species must have evolved from an early species (Leaky, The Origin Of Humankind 2). It was Darwin's ... the parent to provide adequate support for the upbringing of the child for a longer period of time certain social changes would have to take place. First more food would be needed for the growing family. Given this fact one member of the species would need to go out and get the food while o...

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• Grade Level: High School