Take a look at the chart in post #11, I suspect the spike (deaths) around the age 15-25 were the result of violent activity. Also, see below.
"The remains of a 29 year old male show a deep wound in the buttocks, probably caused by an antler. The injury is such that Doran thinks it was caused by a human wielding the antler in anger. He says that the wound is counter to previously stated views of these people as passive."
I encourage all to see this.
farmfriend, will you please ping everyone who may be interested, thanks.