One for the history buffs among you ;
The University of Toronto has issued a press release concerning recent finds in South Africa ;
"An international team...has identified the earliest known evidence of the use of fire by human ancestors. Microscopic traces of wood ash, alongside animal bones and stone tools, were found in a layer dated to one million years ago at the Wonderwerk Cave in South Africa."
for the full text of the press release, see
`South Africa : Scientists Find Evidence That Human Ancestors Used Fire One Million Years Ago`, 2 April 2012 at http://allafrica.com/stories/201204031197.html .