I'd be curious to know how they determine that they're tools and not just
rocks. To the untrained observer, they look pretty similar to a lot of
other rocks I've seen, and bear nothing more than a passing resemblance to
a Stanley 45.

Greg

2015-05-20 17:22 GMT-06:00 Michael Blair :

> Yikes!  Maybe not THE oldest, but 3.3 million years will do for now!
>
> On 2015-05-20 12:12, Don Schwartz wrote:
>
>> These aren't my tools, but they're the oldest by a long shot. Wow!
>>
>>
>> http://www.cbc.ca/news/technology/oldest-stone-tools-pre-date-homo-
genus-1.3080763">http://www.cbc.ca/news/technology/oldest-stone-tools-pre-date-
homo-genus-1.3080763
>>
>
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