Tags: The Best American Essays 2006 ThemesDissertation Support SAdmiration EssayEssay On Social Work TheoryResearch On Homework For Elementary StudentsMagic Flash Paper For SaleTransition Sentences In EssaysRotary Four Way Test EssayEssay Technology Has Changed The Lives Of Teenagers
Social learning fuelled the technological revolution - gradually.
The pebble, found some distance from any possible natural source, was in the possesion of a female Australopithecus africanus, an early hominid living between 3 and 2 million years ago.
The pebble was not a manufactured object, but it was possibly recognized it as a symbolic face, and treasured as such.
Others, however, provide evidence in Africa millenia before. In Africa, Makapansgat is the site of the discovery of the Makapansgat pebble.
This is a 260-gram jasperite cobble with natural chipping and wear patterns that make it look like a crude rendition of a human face.
The overall shape of this little quartzite pebble, almost 6 cms in height, resembles a human figure but is entirely natural and unmodified by human action.
Found near stone tools, it is possible that the pebble was simply collected and kept by someone who noticed its human shape.
As humans, we can breathe and speak without thinking.
Apes have a balloon-like organ connected to the voice box which makes loud booming noises; humans do not.
Bipedalism represented survival and adaptation to the environment.
Almost 2 million years ago our ancestors left the trees for the savannah.