Why would Stone Age man remove brains from skulls and put them on stakes? At the bottom of a pond?
 
Why would Stone Age man carve a wooden fish?

It's a science mystery.

It’s unusual to find a stone burial mound this old. Swedish burial mounds did not become common until around 500 B.C., the Iron Age - its location at the bottom of a little pond is yet another puzzle.



The burial mound location is near Lake Vättern, the second largest in Sweden, in a peat marsh that was once a pond.  They're building a freight railway line nearby so archeologists have been going over the area to see what they can find. The skulls are men and women, young and old - two infants and nine adults.

Rather than being placed at a monument, like most burial mounds, this one was placed at  the bottom of a pond - what was the point? Were they friends or enemies?  Religious?  That's the biggest mystery of all.

Read the fascinating details at Skull on a stake reveals unknown rituals by Arnfinn Christensen, Science Nordic