> * but the Nature article doesn't say which species it is. I commented on
> Unio-L that an inscribed zigzag is not evidence of either art or "abstract
> thought," and it looks like somebody is trolling for a big grant here.

Hi Fred,

What is the inscribed zigzag, then? I'm sure it served some wholly
utilitarian purpose, if it was actually produced by Homo erectus. We
can't rule out a wolf chewing on the shell and leaving the design.

James

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