I just read this very interesting little post in the blog "Ting och Tankar", written by archaeologist Åsa Larsson. Since not all of you speak Swedish, let me summarize it for you...
The stone age excavations in Motala (in Sweden) have resulted in some very interesting finds. For example, skeletal remains appear to have been placed on poles, sticking out of the water, some 7500-8000 years ago.
Now what's REALLY interesting, is the lump of organic material inside one of the skulls... Which has turned out to be the remains of a brain!
Yes, you heard me. A brain. 7500-8000 years old! Isn't that incredible!? And they are currently analyzing it in the search for a method to detect brain damage in unconscious patients... Wonderful!